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style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\"><strong>1. ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES:</strong></p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">BUSINESS:</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">Aehr Test Systems (the \u201cCompany\u201d) was incorporated in California in May 1977 and primarily designs, engineers and manufactures test and burn-in equipment used in the semiconductor industry. The Company\u2019s principal products are the FOX-XP, FOX-NP, and FOX-CP wafer contact parallel test and burn-in systems, the WaferPak full wafer contactor, the DiePak carrier, the WaferPak aligner, the DiePak autoloader, and test fixtures.</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">LIQUIDITY:</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">At May 31, 2022, the Company had $31.5 million in cash and cash equivalents. The company has entered into credit arrangements, and raised capital through public and private equity offerings, to increase the likelihood that it will have sufficient cash to support operations. This includes $25 million raised in October 2021 as a portion of a $75 million shelf registration. The Company anticipates that the existing cash and cash equivalents balance together with future income from operations, collections of existing accounts receivable, revenue from its existing backlog of products as of this filing date, the sale of inventory on hand, deposits and down payments against significant orders will be adequate to meet its working capital and capital equipment requirements, and its anticipated cash needs over the next 12 months.</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">CONSOLIDATION:</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">The consolidated financial statements include the accounts of the Company and both its wholly-owned and majority-owned foreign subsidiaries. Intercompany accounts and transactions have been eliminated.</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">FOREIGN CURRENCY TRANSLATION AND TRANSACTIONS:</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">Assets and liabilities of the Company\u2019s foreign subsidiaries and a branch office are translated into U.S. Dollars from their functional currencies of Euros, Philippines Peso and New Taiwan Dollars using the exchange rate in effect at the balance sheet date. Additionally, their net sales and expenses are translated using exchange rates approximating average rates prevailing during the fiscal year. Translation adjustments that arise from translating their financial statements from their local currencies to U.S. Dollars are accumulated and reflected as a separate component of shareholders\u2019 equity.</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">Transaction gains and losses that arise from exchange rate changes denominated in currencies other than the local currency are included in the Consolidated Statements of Operations as incurred. See Note 13, \u201cOther Income (Expense), Net\u201d for the detail of foreign exchange transaction gains and losses for all periods presented.</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">USE OF ESTIMATES:</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Significant estimates in the Company\u2019s consolidated financial statements include allowance for doubtful accounts, valuation of inventory at the lower of cost or net realizable value, and warranty reserves.</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">CASH EQUIVALENTS:</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">Cash equivalents consist of money market instruments purchased with an original maturity of three months or less. These investments are reported at fair value.</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">ACCOUNTS RECEIVABLE AND ALLOWANCE FOR DOUBTFUL ACCOUNTS:</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">Accounts receivable are derived from the sale of products throughout the world to semiconductor manufacturers, semiconductor contract assemblers, electronics manufacturers and burn-in and test service companies. Accounts receivable are recorded at the invoiced amount and are not interest bearing. The Company maintains an allowance for doubtful accounts to reserve for potentially uncollectible trade receivables. The Company also reviews its trade receivables by aging category to identify specific customers with known disputes or collection issues. The Company exercises judgment when determining the adequacy of these reserves as the Company evaluates historical bad debt trends, general economic conditions in the United States and internationally, and changes in customer financial conditions. Uncollectible receivables are recorded as bad debt expense when all efforts to collect have been exhausted and recoveries are recognized when they are received. No significant adjustments to the allowance for doubtful accounts were recorded during the fiscal years ended May 31, 2022, 2021 or 2020.</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">CONCENTRATION OF CREDIT RISK:</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">The Company sells its products primarily to semiconductor manufacturers in North America, Asia, and Europe. As of May 31, 2022, approximately 20%, 80% and 0% of gross accounts receivable were from customers located in North America, Asia and Europe, respectively. As of May 31, 2021, approximately 2%, 98% and 0% of gross accounts receivable were from customers located in North America, Asia and Europe, respectively. Three customers accounted for 68%, 18% and 11% of gross accounts receivable as of May 31, 2022. Three customers accounted for 51%, 24% and 19% of gross accounts receivable as of May 31, 2021. One customer accounted for 82% of net sales in fiscal 2022. Four customers accounted for 24%, 23%, 20% and 10% of net sales in fiscal 2021. The Company performs ongoing credit evaluations of its customers and generally does not require collateral. The Company uses letter of credit terms for some of its international customers.</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">The Company\u2019s cash and cash equivalents are generally deposited with major financial institutions in the United States, Philippines, Germany and Taiwan. The Company invests its excess cash in money market funds and U.S. Treasury securities. The money market funds bear the risk associated with each fund. The money market funds have variable interest rates. The Company has not experienced any material losses on its money market funds or short-term cash deposits.</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">CONCENTRATION OF SUPPLY RISK:</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">The Company relies on subcontractors to manufacture many of the components and subassemblies used in its products. Quality or performance failures of the Company\u2019s products or changes in its manufacturers\u2019 financial or business condition could disrupt the Company\u2019s ability to supply quality products to its customers and thereby have a material and adverse effect on its business and operating results. Some of the components and technologies used in the Company\u2019s products are purchased and licensed from a single source or a limited number of sources. The loss of any of these suppliers may cause the Company to incur additional transition costs, result in delays in the manufacturing and delivery of its products, or cause it to carry excess or obsolete inventory and could cause it to redesign its products.</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">INVENTORIES:</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">Inventories include material, labor and overhead, and are stated at the lower of cost (first-in, first-out method) or net realizable value. Net realizable value is the estimated selling prices in the ordinary course of business, less costs of completion, disposal and transportation. Provisions for excess, obsolete and unusable inventories are made after management\u2019s evaluation of future demand and market conditions. The Company adjusts inventory balances to approximate the lower of its manufacturing costs or net realizable value. If actual future demand or market conditions become less favorable than those projected by management, additional inventory write-downs may be required, and would be reflected in cost of sales in the period the revision is made. During fiscal 2022, 2021 and 2020 the Company recognized a provision for inventory reserves of $1,031,000, $176,000, and $1,669,000, respectively.</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">PROPERTY AND EQUIPMENT:</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">Property and equipment are stated at cost less accumulated depreciation and amortization. Major improvements are capitalized, while repairs and maintenance are expensed as incurred. Leasehold improvements are amortized over the lesser of their estimated useful lives or the term of the related lease. Furniture and fixtures, machinery and equipment, and test equipment are depreciated on a straight-line basis over their estimated useful lives. The ranges of estimated useful lives are generally as follows:</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><table cellpadding=\"0\" style=\"border-spacing:0;font-size:10pt;width:100%\"><tbody><tr style=\"height:15px;background-color:#cceeff\"><td style=\"width:25%;vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Furniture and fixtures \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0</p></td><td style=\"width:2%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">2 to 6 years</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Machinery and equipment</p></td><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">3 to 6 years</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Test equipment</p></td><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">4 to 6 years</p></td></tr></tbody></table><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0\u00a0 \u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">REVENUE RECOGNITION:</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">The Company recognizes revenue when promised goods or services are transferred to customers in an amount that reflects the consideration to which the Company expects to be entitled in exchange for those goods or services by following a five-step process: (1) identify the contract with a customer, (2) identify the performance obligations in the contract, (3) determine the transaction price, (4) allocate the transaction price, and (5) recognize revenue when or as the Company satisfies a performance obligation, as further described below.</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">Performance obligations include sales of systems, contactors, spare parts, and services, as well as installation and training services included in customer contracts.</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">A contract\u2019s transaction price is allocated to each distinct performance obligation. In determining the transaction price, the Company evaluates whether the price is subject to refund or adjustment to determine the net consideration to which the Company expects to be entitled. The Company generally does not grant return privileges, except for defective products during the warranty period.</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">For contracts that contain multiple performance obligations, the Company allocates the transaction price to the performance obligations on a relative standalone selling price basis. Standalone selling prices are based on multiple factors including, but not limited to, historical discounting trends for products and services and pricing practices in different geographies.</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">Revenue for systems and spares are recognized at a point in time, which is generally upon shipment or delivery. Revenue from services is recognized over time as services are completed or ratably over the contractual period of generally one year or less.</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">The Company has elected the practical expedient to not assess whether a contract has a significant financing component as the Company\u2019s standard payment terms are less than one year.</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">We sell our products primarily through a direct sales force. In certain international markets, we sell our products through independent distributors.</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">Transfer of control is evidenced upon passage of title and risk of loss to the customer unless we are required to provide additional services.</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">PRODUCT DEVELOPMENT COSTS AND CAPITALIZED SOFTWARE:</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">Costs incurred in the research and development of new products or systems are charged to operations as incurred. Costs incurred in the development of software programs for the Company\u2019s products are charged to operations as incurred until technological feasibility of the software has been established. Generally, technological feasibility is established when the software module performs its primary functions described in its original specifications, contains features required for it to be usable in a production environment, is completely documented and the related hardware portion of the product is complete. After technological feasibility is established, any additional costs are capitalized. Capitalization of software costs ceases when the software is substantially complete and is ready for its intended use. Capitalized costs are amortized over the estimated life of the related software product using the greater of the units of sales or straight-line methods over ten years. No system software development costs were capitalized or amortized in fiscal 2022, 2021 and 2020.</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">IMPAIRMENT OF LONG-LIVED ASSETS:</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">In the event that facts and circumstances indicate that the carrying value of assets may be impaired, an evaluation of recoverability would be performed. If an evaluation is required, the estimated future undiscounted cash flows associated with the asset would be compared to the asset\u2019s carrying value to determine if a write-down is required.</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">ADVERTISING COSTS:</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">The Company expenses all advertising costs as incurred and the amounts were not material for all periods presented.</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">SHIPPING AND HANDLING OF PRODUCTS:</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">Amounts billed to customers for shipping and handling of products are included in net sales. Costs incurred related to shipping and handling of products are included in cost of sales.</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">INCOME TAXES:</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">Income taxes are accounted for under the asset-and-liability method as required by FASB ASC Topic 740, Income Taxes (\u201cASC 740\u201d). Deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases and operating loss and tax credit carryforwards. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income in the period corresponding to the enactment date. Under ASC 740, a valuation allowance is required when it is more likely than not all or some portion of the deferred tax assets will not be realized through generating sufficient future taxable income.</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">FASB ASC Subtopic 740-10, Accounting for Uncertainty of Income Taxes, (\u201cASC 740-10\u201d) defines the criterion an individual tax position must meet for any part of the benefit of the tax position to be recognized in financial statements prepared in conformity with GAAP. The Company may recognize the tax benefit from an uncertain tax position only if it is more likely than not such tax position will be sustained on examination by the taxing authorities, based solely on the technical merits of the respective tax position. The tax benefits recognized in the financial statements from such a tax position should be measured based on the largest benefit having a greater than 50% likelihood of being realized upon ultimate settlement with the tax authority. In accordance with the disclosure requirements of ASC 740-10, the Company\u2019s policy on income statement classification of interest and penalties related to income tax obligations is to include such items as part of income taxes.</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">COMPREHENSIVE INCOME (LOSS):</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">Comprehensive income (loss) generally represents all changes in shareholders\u2019 equity except those resulting from investments or contributions by shareholders. Unrealized gains and losses on foreign currency translation adjustments are included in the Company\u2019s components of comprehensive income (loss), which are excluded from net income (loss). In fiscal 2021 the Company recognized\u00a0a gain\u00a0of $2,401,000 related to the completed liquidation of ATS-Japan, a majority owned subsidiary, which is deducted from net income (loss) when calculating comprehensive income (loss). Refer to Note 16, \u201cDissolution of Aehr Test Systems Japan,\u201d for a further discussion of the transaction. Comprehensive income (loss) is included in the statements of comprehensive income (loss).</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">RECENT ACCOUNTING PRONOUNCEMENTS:</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">Accounting Standards Adopted</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\"><em>Income Taxes</em></p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">On December 18, 2019, the FASB issued Accounting Standards Update ASU 2019-12 on Simplifying the Accounting for Income Taxes. The board decided to remove the exception to the incremental approach for intra-period tax allocation when there is a loss from continuing operations and income or gain from other items (for example discontinued operations or other comprehensive income). There are also provisions related to state taxes and calculating income taxes in an interim period when a year-to-date loss exceeds the anticipated loss for the year. The new guidance is effective for fiscal years, and interim periods within those fiscal years, beginning on or after December 15, 2020. The Company has adopted ASU 2019-12 in the quarter ended August 31, 2021 with no material impact.</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">Accounting Standards Not Yet Adopted</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\"><em>Financial Instruments</em></p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">In June 2016, the FASB issued an accounting standard update (\u201cASU\u201d) that requires measurement and recognition of expected credit losses for financial assets held based on historical experience, current conditions, and reasonable and supportable forecasts that affect the collectability of the reported amount. Due to a subsequent ASU in November 2019, the accounting standard will be effective for the Company beginning in the first quarter of fiscal 2024 on a modified retrospective basis, and early adoption in fiscal 2020 is permitted. The Company does not expect a material impact of this accounting standard on its consolidated financial statements.</p>"}]},{"name":"rpt:f-456","factDimensions":{"xbrl:concept":"us-gaap:BusinessDescriptionAndBasisOfPresentationTextBlock","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470"},"factValues":[{"value":"<p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">Aehr Test Systems (the \u201cCompany\u201d) was incorporated in California in May 1977 and primarily designs, engineers and manufactures test and burn-in equipment used in the semiconductor industry. The Company\u2019s principal products are the FOX-XP, FOX-NP, and FOX-CP wafer contact parallel test and burn-in systems, the WaferPak full wafer contactor, the DiePak carrier, the WaferPak aligner, the DiePak autoloader, and test fixtures.</p>"}]},{"name":"rpt:f-457","factDimensions":{"xbrl:concept":"aehr:Liquidity","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470"},"factValues":[{"value":"<p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">At May 31, 2022, the Company had $31.5 million in cash and cash equivalents. The company has entered into credit arrangements, and raised capital through public and private equity offerings, to increase the likelihood that it will have sufficient cash to support operations. This includes $25 million raised in October 2021 as a portion of a $75 million shelf registration. The Company anticipates that the existing cash and cash equivalents balance together with future income from operations, collections of existing accounts receivable, revenue from its existing backlog of products as of this filing date, the sale of inventory on hand, deposits and down payments against significant orders will be adequate to meet its working capital and capital equipment requirements, and its anticipated cash needs over the next 12 months.</p>"}]},{"name":"rpt:f-458","factDimensions":{"xbrl:concept":"us-gaap:CashEquivalentsAtCarryingValue","xbrl:period":"2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"31500000","decimals":-5}]},{"name":"rpt:f-459","factDimensions":{"xbrl:concept":"aehr:RasiedCapital","xbrl:period":"2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"25000000","decimals":-6}]},{"name":"rpt:f-460","factDimensions":{"xbrl:concept":"aehr:ShelfRegistration","xbrl:period":"2021-11-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"75000000","decimals":-6}]},{"name":"rpt:f-461","factDimensions":{"xbrl:concept":"us-gaap:ConsolidationPolicyTextBlock","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470"},"factValues":[{"value":"<p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">The consolidated financial statements include the accounts of the Company and both its wholly-owned and majority-owned foreign subsidiaries. Intercompany accounts and transactions have been eliminated.</p>"}]},{"name":"rpt:f-462","factDimensions":{"xbrl:concept":"us-gaap:ForeignCurrencyTransactionsAndTranslationsPolicyTextBlock","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470"},"factValues":[{"value":"<p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">Assets and liabilities of the Company\u2019s foreign subsidiaries and a branch office are translated into U.S. Dollars from their functional currencies of Euros, Philippines Peso and New Taiwan Dollars using the exchange rate in effect at the balance sheet date. Additionally, their net sales and expenses are translated using exchange rates approximating average rates prevailing during the fiscal year. Translation adjustments that arise from translating their financial statements from their local currencies to U.S. Dollars are accumulated and reflected as a separate component of shareholders\u2019 equity.</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">Transaction gains and losses that arise from exchange rate changes denominated in currencies other than the local currency are included in the Consolidated Statements of Operations as incurred. See Note 13, \u201cOther Income (Expense), Net\u201d for the detail of foreign exchange transaction gains and losses for all periods presented.</p>"}]},{"name":"rpt:f-463","factDimensions":{"xbrl:concept":"us-gaap:UseOfEstimates","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470"},"factValues":[{"value":"<p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Significant estimates in the Company\u2019s consolidated financial statements include allowance for doubtful accounts, valuation of inventory at the lower of cost or net realizable value, and warranty reserves.</p>"}]},{"name":"rpt:f-464","factDimensions":{"xbrl:concept":"us-gaap:CashAndCashEquivalentsPolicyTextBlock","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470"},"factValues":[{"value":"<p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">Cash equivalents consist of money market instruments purchased with an original maturity of three months or less. These investments are reported at fair value.</p>"}]},{"name":"rpt:f-465","factDimensions":{"xbrl:concept":"us-gaap:ReceivablesTradeAndOtherAccountsReceivableAllowanceForDoubtfulAccountsPolicy","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470"},"factValues":[{"value":"<p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">Accounts receivable are derived from the sale of products throughout the world to semiconductor manufacturers, semiconductor contract assemblers, electronics manufacturers and burn-in and test service companies. Accounts receivable are recorded at the invoiced amount and are not interest bearing. The Company maintains an allowance for doubtful accounts to reserve for potentially uncollectible trade receivables. The Company also reviews its trade receivables by aging category to identify specific customers with known disputes or collection issues. The Company exercises judgment when determining the adequacy of these reserves as the Company evaluates historical bad debt trends, general economic conditions in the United States and internationally, and changes in customer financial conditions. Uncollectible receivables are recorded as bad debt expense when all efforts to collect have been exhausted and recoveries are recognized when they are received. No significant adjustments to the allowance for doubtful accounts were recorded during the fiscal years ended May 31, 2022, 2021 or 2020.</p>"}]},{"name":"rpt:f-466","factDimensions":{"xbrl:concept":"us-gaap:ConcentrationRiskCreditRisk","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470"},"factValues":[{"value":"<p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">The Company sells its products primarily to semiconductor manufacturers in North America, Asia, and Europe. As of May 31, 2022, approximately 20%, 80% and 0% of gross accounts receivable were from customers located in North America, Asia and Europe, respectively. As of May 31, 2021, approximately 2%, 98% and 0% of gross accounts receivable were from customers located in North America, Asia and Europe, respectively. Three customers accounted for 68%, 18% and 11% of gross accounts receivable as of May 31, 2022. Three customers accounted for 51%, 24% and 19% of gross accounts receivable as of May 31, 2021. One customer accounted for 82% of net sales in fiscal 2022. Four customers accounted for 24%, 23%, 20% and 10% of net sales in fiscal 2021. The Company performs ongoing credit evaluations of its customers and generally does not require collateral. The Company uses letter of credit terms for some of its international customers.</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">The Company\u2019s cash and cash equivalents are generally deposited with major financial institutions in the United States, Philippines, Germany and Taiwan. The Company invests its excess cash in money market funds and U.S. Treasury securities. The money market funds bear the risk associated with each fund. The money market funds have variable interest rates. The Company has not experienced any material losses on its money market funds or short-term cash deposits.</p>"}]},{"name":"rpt:f-467","factDimensions":{"xbrl:concept":"us-gaap:ConcentrationRiskPercentage1","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","srt:StatementGeographicalAxis":"aehr:NorthAmericasMember","us-gaap:ConcentrationRiskByTypeAxis":"us-gaap:AccountsReceivableMember"},"factValues":[{"value":"0.20"}]},{"name":"rpt:f-468","factDimensions":{"xbrl:concept":"us-gaap:ConcentrationRiskPercentage1","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","srt:StatementGeographicalAxis":"aehr:AsiasMember","us-gaap:ConcentrationRiskByTypeAxis":"us-gaap:AccountsReceivableMember"},"factValues":[{"value":"0.80"}]},{"name":"rpt:f-469","factDimensions":{"xbrl:concept":"us-gaap:ConcentrationRiskPercentage1","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","srt:StatementGeographicalAxis":"aehr:EuropesMember","us-gaap:ConcentrationRiskByTypeAxis":"us-gaap:AccountsReceivableMember"},"factValues":[{"value":"0"}]},{"name":"rpt:f-470","factDimensions":{"xbrl:concept":"us-gaap:ConcentrationRiskPercentage1","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","srt:StatementGeographicalAxis":"aehr:NorthAmericasMember","us-gaap:ConcentrationRiskByTypeAxis":"us-gaap:AccountsReceivableMember"},"factValues":[{"value":"0.02"}]},{"name":"rpt:f-471","factDimensions":{"xbrl:concept":"us-gaap:ConcentrationRiskPercentage1","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","srt:StatementGeographicalAxis":"aehr:AsiasMember","us-gaap:ConcentrationRiskByTypeAxis":"us-gaap:AccountsReceivableMember"},"factValues":[{"value":"0.98"}]},{"name":"rpt:f-472","factDimensions":{"xbrl:concept":"us-gaap:ConcentrationRiskPercentage1","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","srt:StatementGeographicalAxis":"aehr:EuropesMember","us-gaap:ConcentrationRiskByTypeAxis":"us-gaap:AccountsReceivableMember"},"factValues":[{"value":"0"}]},{"name":"rpt:f-473","factDimensions":{"xbrl:concept":"us-gaap:ConcentrationRiskPercentage1","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","us-gaap:StatementBusinessSegmentsAxis":"aehr:OneCustomerMember","us-gaap:ConcentrationRiskByTypeAxis":"us-gaap:AccountsReceivableMember"},"factValues":[{"value":"0.68"}]},{"name":"rpt:f-474","factDimensions":{"xbrl:concept":"us-gaap:ConcentrationRiskPercentage1","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","us-gaap:StatementBusinessSegmentsAxis":"aehr:TwoCustomerMember","us-gaap:ConcentrationRiskByTypeAxis":"us-gaap:AccountsReceivableMember"},"factValues":[{"value":"0.18"}]},{"name":"rpt:f-475","factDimensions":{"xbrl:concept":"us-gaap:ConcentrationRiskPercentage1","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","us-gaap:StatementBusinessSegmentsAxis":"aehr:CustomerThreeMember","us-gaap:ConcentrationRiskByTypeAxis":"us-gaap:AccountsReceivableMember"},"factValues":[{"value":"0.11"}]},{"name":"rpt:f-476","factDimensions":{"xbrl:concept":"us-gaap:ConcentrationRiskPercentage1","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","us-gaap:StatementBusinessSegmentsAxis":"aehr:OneCustomerMember","us-gaap:ConcentrationRiskByTypeAxis":"us-gaap:AccountsReceivableMember"},"factValues":[{"value":"0.51"}]},{"name":"rpt:f-477","factDimensions":{"xbrl:concept":"us-gaap:ConcentrationRiskPercentage1","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","us-gaap:StatementBusinessSegmentsAxis":"aehr:TwoCustomerMember","us-gaap:ConcentrationRiskByTypeAxis":"us-gaap:AccountsReceivableMember"},"factValues":[{"value":"0.24"}]},{"name":"rpt:f-478","factDimensions":{"xbrl:concept":"us-gaap:ConcentrationRiskPercentage1","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","us-gaap:StatementBusinessSegmentsAxis":"aehr:CustomerThreeMember","us-gaap:ConcentrationRiskByTypeAxis":"us-gaap:AccountsReceivableMember"},"factValues":[{"value":"0.19"}]},{"name":"rpt:f-479","factDimensions":{"xbrl:concept":"us-gaap:ConcentrationRiskPercentage1","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","us-gaap:StatementBusinessSegmentsAxis":"aehr:OneCustomerMember","us-gaap:ConcentrationRiskByTypeAxis":"us-gaap:SalesMember"},"factValues":[{"value":"0.82"}]},{"name":"rpt:f-480","factDimensions":{"xbrl:concept":"us-gaap:ConcentrationRiskPercentage1","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","us-gaap:StatementBusinessSegmentsAxis":"aehr:OneCustomerMember","us-gaap:ConcentrationRiskByTypeAxis":"us-gaap:SalesMember"},"factValues":[{"value":"0.24"}]},{"name":"rpt:f-481","factDimensions":{"xbrl:concept":"us-gaap:ConcentrationRiskPercentage1","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity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style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">The Company relies on subcontractors to manufacture many of the components and subassemblies used in its products. Quality or performance failures of the Company\u2019s products or changes in its manufacturers\u2019 financial or business condition could disrupt the Company\u2019s ability to supply quality products to its customers and thereby have a material and adverse effect on its business and operating results. Some of the components and technologies used in the Company\u2019s products are purchased and licensed from a single source or a limited number of sources. The loss of any of these suppliers may cause the Company to incur additional transition costs, result in delays in the manufacturing and delivery of its products, or cause it to carry excess or obsolete inventory and could cause it to redesign its products.</p>"}]},{"name":"rpt:f-485","factDimensions":{"xbrl:concept":"us-gaap:InventoryPolicyTextBlock","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470"},"factValues":[{"value":"<p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">Inventories include material, labor and overhead, and are stated at the lower of cost (first-in, first-out method) or net realizable value. Net realizable value is the estimated selling prices in the ordinary course of business, less costs of completion, disposal and transportation. Provisions for excess, obsolete and unusable inventories are made after management\u2019s evaluation of future demand and market conditions. The Company adjusts inventory balances to approximate the lower of its manufacturing costs or net realizable value. If actual future demand or market conditions become less favorable than those projected by management, additional inventory write-downs may be required, and would be reflected in cost of sales in the period the revision is made. During fiscal 2022, 2021 and 2020 the Company recognized a provision for inventory reserves of $1,031,000, $176,000, and $1,669,000, respectively.</p>"}]},{"name":"rpt:f-486","factDimensions":{"xbrl:concept":"us-gaap:InventoryValuationReserves","xbrl:period":"2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"1031000","decimals":0}]},{"name":"rpt:f-487","factDimensions":{"xbrl:concept":"us-gaap:InventoryValuationReserves","xbrl:period":"2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"176000","decimals":0}]},{"name":"rpt:f-488","factDimensions":{"xbrl:concept":"us-gaap:InventoryValuationReserves","xbrl:period":"2020-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"1669000","decimals":0}]},{"name":"rpt:f-489","factDimensions":{"xbrl:concept":"us-gaap:PropertyPlantAndEquipmentPolicyTextBlock","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470"},"factValues":[{"value":"<p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">Property and equipment are stated at cost less accumulated depreciation and amortization. Major improvements are capitalized, while repairs and maintenance are expensed as incurred. Leasehold improvements are amortized over the lesser of their estimated useful lives or the term of the related lease. Furniture and fixtures, machinery and equipment, and test equipment are depreciated on a straight-line basis over their estimated useful lives. The ranges of estimated useful lives are generally as follows:</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><table cellpadding=\"0\" style=\"border-spacing:0;font-size:10pt;width:100%\"><tbody><tr style=\"height:15px;background-color:#cceeff\"><td style=\"width:25%;vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Furniture and fixtures \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0</p></td><td style=\"width:2%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">2 to 6 years</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Machinery and equipment</p></td><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">3 to 6 years</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Test equipment</p></td><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">4 to 6 years</p></td></tr></tbody></table>"}]},{"name":"rpt:f-490","factDimensions":{"xbrl:concept":"aehr:ScheduleUsefulLifeForPropertyAndEquipmentTableTextblock","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470"},"factValues":[{"value":"<table cellpadding=\"0\" style=\"border-spacing:0;font-size:10pt;width:100%\"><tbody><tr style=\"height:15px;background-color:#cceeff\"><td style=\"width:25%;vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Furniture and fixtures \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0</p></td><td style=\"width:2%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">2 to 6 years</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Machinery and equipment</p></td><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">3 to 6 years</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Test equipment</p></td><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">4 to 6 years</p></td></tr></tbody></table>"}]},{"name":"rpt:f-491","factDimensions":{"xbrl:concept":"us-gaap:PropertyPlantAndEquipmentUsefulLife","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","us-gaap:PropertyPlantAndEquipmentByTypeAxis":"us-gaap:FurnitureAndFixturesMember","srt:RangeAxis":"srt:MinimumMember"},"factValues":[{"value":"P2Y"}]},{"name":"rpt:f-492","factDimensions":{"xbrl:concept":"us-gaap:PropertyPlantAndEquipmentUsefulLife","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","us-gaap:PropertyPlantAndEquipmentByTypeAxis":"us-gaap:FurnitureAndFixturesMember","srt:RangeAxis":"srt:MaximumMember"},"factValues":[{"value":"P6Y"}]},{"name":"rpt:f-493","factDimensions":{"xbrl:concept":"us-gaap:PropertyPlantAndEquipmentUsefulLife","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","us-gaap:PropertyPlantAndEquipmentByTypeAxis":"us-gaap:MachineryAndEquipmentMember","srt:RangeAxis":"srt:MinimumMember"},"factValues":[{"value":"P3Y"}]},{"name":"rpt:f-494","factDimensions":{"xbrl:concept":"us-gaap:PropertyPlantAndEquipmentUsefulLife","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","us-gaap:PropertyPlantAndEquipmentByTypeAxis":"us-gaap:MachineryAndEquipmentMember","srt:RangeAxis":"srt:MaximumMember"},"factValues":[{"value":"P6Y"}]},{"name":"rpt:f-495","factDimensions":{"xbrl:concept":"us-gaap:PropertyPlantAndEquipmentUsefulLife","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","us-gaap:PropertyPlantAndEquipmentByTypeAxis":"us-gaap:OtherCapitalizedPropertyPlantAndEquipmentMember","srt:RangeAxis":"srt:MinimumMember"},"factValues":[{"value":"P4Y"}]},{"name":"rpt:f-496","factDimensions":{"xbrl:concept":"us-gaap:PropertyPlantAndEquipmentUsefulLife","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","us-gaap:PropertyPlantAndEquipmentByTypeAxis":"us-gaap:OtherCapitalizedPropertyPlantAndEquipmentMember","srt:RangeAxis":"srt:MaximumMember"},"factValues":[{"value":"P6Y"}]},{"name":"rpt:f-497","factDimensions":{"xbrl:concept":"us-gaap:RevenueRecognitionPolicyTextBlock","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470"},"factValues":[{"value":"<p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">The Company recognizes revenue when promised goods or services are transferred to customers in an amount that reflects the consideration to which the Company expects to be entitled in exchange for those goods or services by following a five-step process: (1) identify the contract with a customer, (2) identify the performance obligations in the contract, (3) determine the transaction price, (4) allocate the transaction price, and (5) recognize revenue when or as the Company satisfies a performance obligation, as further described below.</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">Performance obligations include sales of systems, contactors, spare parts, and services, as well as installation and training services included in customer contracts.</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">A contract\u2019s transaction price is allocated to each distinct performance obligation. In determining the transaction price, the Company evaluates whether the price is subject to refund or adjustment to determine the net consideration to which the Company expects to be entitled. The Company generally does not grant return privileges, except for defective products during the warranty period.</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">For contracts that contain multiple performance obligations, the Company allocates the transaction price to the performance obligations on a relative standalone selling price basis. Standalone selling prices are based on multiple factors including, but not limited to, historical discounting trends for products and services and pricing practices in different geographies.</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">Revenue for systems and spares are recognized at a point in time, which is generally upon shipment or delivery. Revenue from services is recognized over time as services are completed or ratably over the contractual period of generally one year or less.</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">The Company has elected the practical expedient to not assess whether a contract has a significant financing component as the Company\u2019s standard payment terms are less than one year.</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">We sell our products primarily through a direct sales force. In certain international markets, we sell our products through independent distributors.</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">Transfer of control is evidenced upon passage of title and risk of loss to the customer unless we are required to provide additional services.</p>"}]},{"name":"rpt:f-498","factDimensions":{"xbrl:concept":"us-gaap:ResearchAndDevelopmentExpensePolicy","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470"},"factValues":[{"value":"<p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">Costs incurred in the research and development of new products or systems are charged to operations as incurred. Costs incurred in the development of software programs for the Company\u2019s products are charged to operations as incurred until technological feasibility of the software has been established. Generally, technological feasibility is established when the software module performs its primary functions described in its original specifications, contains features required for it to be usable in a production environment, is completely documented and the related hardware portion of the product is complete. After technological feasibility is established, any additional costs are capitalized. Capitalization of software costs ceases when the software is substantially complete and is ready for its intended use. Capitalized costs are amortized over the estimated life of the related software product using the greater of the units of sales or straight-line methods over ten years. No system software development costs were capitalized or amortized in fiscal 2022, 2021 and 2020.</p>"}]},{"name":"rpt:f-499","factDimensions":{"xbrl:concept":"us-gaap:ImpairmentOrDisposalOfLongLivedAssetsPolicyTextBlock","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470"},"factValues":[{"value":"<p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">In the event that facts and circumstances indicate that the carrying value of assets may be impaired, an evaluation of recoverability would be performed. If an evaluation is required, the estimated future undiscounted cash flows associated with the asset would be compared to the asset\u2019s carrying value to determine if a write-down is required.</p>"}]},{"name":"rpt:f-500","factDimensions":{"xbrl:concept":"us-gaap:AdvertisingCostsPolicyTextBlock","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470"},"factValues":[{"value":"<p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">The Company expenses all advertising costs as incurred and the amounts were not material for all periods presented.</p>"}]},{"name":"rpt:f-501","factDimensions":{"xbrl:concept":"us-gaap:ShippingAndHandlingCostPolicyTextBlock","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470"},"factValues":[{"value":"<p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">Amounts billed to customers for shipping and handling of products are included in net sales. Costs incurred related to shipping and handling of products are included in cost of sales.</p>"}]},{"name":"rpt:f-502","factDimensions":{"xbrl:concept":"us-gaap:IncomeTaxPolicyTextBlock","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470"},"factValues":[{"value":"<p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">Income taxes are accounted for under the asset-and-liability method as required by FASB ASC Topic 740, Income Taxes (\u201cASC 740\u201d). Deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases and operating loss and tax credit carryforwards. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income in the period corresponding to the enactment date. Under ASC 740, a valuation allowance is required when it is more likely than not all or some portion of the deferred tax assets will not be realized through generating sufficient future taxable income.</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">FASB ASC Subtopic 740-10, Accounting for Uncertainty of Income Taxes, (\u201cASC 740-10\u201d) defines the criterion an individual tax position must meet for any part of the benefit of the tax position to be recognized in financial statements prepared in conformity with GAAP. The Company may recognize the tax benefit from an uncertain tax position only if it is more likely than not such tax position will be sustained on examination by the taxing authorities, based solely on the technical merits of the respective tax position. The tax benefits recognized in the financial statements from such a tax position should be measured based on the largest benefit having a greater than 50% likelihood of being realized upon ultimate settlement with the tax authority. In accordance with the disclosure requirements of ASC 740-10, the Company\u2019s policy on income statement classification of interest and penalties related to income tax obligations is to include such items as part of income taxes.</p>"}]},{"name":"rpt:f-503","factDimensions":{"xbrl:concept":"us-gaap:ComprehensiveIncomePolicyPolicyTextBlock","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470"},"factValues":[{"value":"<p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">Comprehensive income (loss) generally represents all changes in shareholders\u2019 equity except those resulting from investments or contributions by shareholders. Unrealized gains and losses on foreign currency translation adjustments are included in the Company\u2019s components of comprehensive income (loss), which are excluded from net income (loss). In fiscal 2021 the Company recognized\u00a0a gain\u00a0of $2,401,000 related to the completed liquidation of ATS-Japan, a majority owned subsidiary, which is deducted from net income (loss) when calculating comprehensive income (loss). Refer to Note 16, \u201cDissolution of Aehr Test Systems Japan,\u201d for a further discussion of the transaction. Comprehensive income (loss) is included in the statements of comprehensive income (loss).</p>"}]},{"name":"rpt:f-504","factDimensions":{"xbrl:concept":"us-gaap:NewAccountingPronouncementsPolicyPolicyTextBlock","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470"},"factValues":[{"value":"<p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">Accounting Standards Adopted</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\"><em>Income Taxes</em></p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">On December 18, 2019, the FASB issued Accounting Standards Update ASU 2019-12 on Simplifying the Accounting for Income Taxes. The board decided to remove the exception to the incremental approach for intra-period tax allocation when there is a loss from continuing operations and income or gain from other items (for example discontinued operations or other comprehensive income). There are also provisions related to state taxes and calculating income taxes in an interim period when a year-to-date loss exceeds the anticipated loss for the year. The new guidance is effective for fiscal years, and interim periods within those fiscal years, beginning on or after December 15, 2020. The Company has adopted ASU 2019-12 in the quarter ended August 31, 2021 with no material impact.</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">Accounting Standards Not Yet Adopted</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\"><em>Financial Instruments</em></p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">In June 2016, the FASB issued an accounting standard update (\u201cASU\u201d) that requires measurement and recognition of expected credit losses for financial assets held based on historical experience, current conditions, and reasonable and supportable forecasts that affect the collectability of the reported amount. Due to a subsequent ASU in November 2019, the accounting standard will be effective for the Company beginning in the first quarter of fiscal 2024 on a modified retrospective basis, and early adoption in fiscal 2020 is permitted. The Company does not expect a material impact of this accounting standard on its consolidated financial statements.</p>"}]},{"name":"rpt:f-505","factDimensions":{"xbrl:concept":"us-gaap:RevenueFromContractWithCustomerTextBlock","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470"},"factValues":[{"value":"<p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\"><strong>2. REVENUE:</strong></p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\"><em>Disaggregation of revenue </em></p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">The following tables show revenues by major product categories. Within each product category, contract terms, conditions and economic factors affecting the nature, amount, timing and uncertainty around revenue recognition and cash flow are substantially similar.</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">The Company\u2019s revenues by product category are as follows (in thousands):</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><table cellpadding=\"0\" style=\"border-spacing:0;text-align:left;font:10pt times new roman;width:100%\"><tbody><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"10\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Year Ended May 31,</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2022</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2021</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2020</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Type of good / service:</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" colspan=\"2\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" colspan=\"2\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" colspan=\"2\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px;text-indent:10pt\">Systems</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">25,224</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">7,250</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">8,099</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px;text-indent:10pt\">Contactors</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">22,647</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">5,837</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">10,784</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px;text-indent:10pt\">Services</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">2,958</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">3,513</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">3,408</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">50,829</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">16,600</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">22,291</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Product lines:</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px;text-indent:10pt\">Wafer-level</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">48,926</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">15,004</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">19,768</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px;text-indent:10pt\">Test During Burn-In</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">1,903</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">1,596</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">2,523</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">50,829</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">16,600</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">22,291</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr></tbody></table><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0\u00a0\u00a0 \u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">The following presents information about the Company\u2019s operations in different geographic areas. Net sales are based upon ship-to location (in thousands):</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0\u00a0 </p><table cellpadding=\"0\" style=\"border-spacing:0;text-align:left;font:10pt times new roman;width:100%\"><tbody><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"10\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Year Ended May 31,</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2022</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2021</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2020</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Geographic region:</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" colspan=\"2\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" colspan=\"2\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" colspan=\"2\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px;text-indent:10pt\">United States</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">5,110</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">5,386</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">13,544</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px;text-indent:10pt\">Asia</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">45,700</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">11,074</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">7,556</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px;text-indent:10pt\">Europe</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">19</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">140</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">1,191</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">50,829</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">16,600</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">22,291</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr></tbody></table><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0\u00a0\u00a0 </p><p style=\"font-size:10pt;font-family:times new roman;margin:0px;text-indent:45px\">With the exception of the amount of service contracts and extended warranties, the Company\u2019s product category revenues are recognized at point in time when control transfers to customers. The following presents revenue based on timing of recognition (in thousands): </p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><table cellpadding=\"0\" style=\"border-spacing:0;text-align:left;font:10pt times new roman;width:100%\"><tbody><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"10\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Year Ended May 31,</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2022</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2021</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2020</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px\"><td style=\"vertical-align:bottom;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Timing of revenue recognition (in thousands):</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"6\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px;text-indent:10pt\">Products and services transferred at a point in time</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">49,441</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">15,009</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">19,948</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px;text-indent:10pt\">Services transferred over time</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">1,388</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">1,591</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">2,343</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">50,829</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">16,600</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">22,291</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr></tbody></table><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0 </p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\"><em>Contract balances\u00a0 </em></p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">A receivable is recognized in the period the Company delivers goods or provides services or when the Company\u2019s right to consideration is unconditional. The Company usually does not record contract assets because the Company has an unconditional right to payment upon satisfaction of the performance obligation, and therefore, a receivable is more commonly recorded than a contract asset.</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">Contract liabilities include payments received in advance of performance under a contract and are satisfied as the associated revenue is recognized. Contract liabilities are reported on the consolidated balance sheets at the end of each reporting period as a component of deferred revenue. Contract liabilities as of May 31, 2022 and 2021 were $2,484,000 and $288,000, respectively. During the fiscal years ended May 31, 2022 and 2021, the Company recognized $189,000 and $164,000 of revenues that were included in contract liabilities as of May 31, 2021 and 2020, respectively.</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\"><em>Remaining performance obligations</em></p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">On May 31, 2022, the Company had $212,000 of remaining performance obligations, exclusive of customer deposits, which were comprised of deferred service contracts and extended warranty contracts not yet delivered. The Company expects to recognize approximately 68% of its remaining performance obligations as revenue in fiscal 2023, and an additional 32% in fiscal 2024 and thereafter. The foregoing excludes the value of other remaining performance obligations as they have original durations of one year or less, and also excludes information about variable consideration allocated entirely to a wholly unsatisfied performance obligation.</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\"><em>Costs to obtain or fulfill a contract</em></p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">The Company generally expenses sales commissions when incurred as a component of selling, general and administrative expense as the amortization period is typically less than one year. Additionally, the majority of the Company\u2019s cost of fulfillment as a manufacturer of products is classified as inventory and fixed assets, which are accounted for under the respective guidance for those asset types. Other costs of contract fulfillment are immaterial due to the nature of the Company\u2019s products and their respective manufacturing process.</p>"}]},{"name":"rpt:f-506","factDimensions":{"xbrl:concept":"us-gaap:DisaggregationOfRevenueTableTextBlock","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470"},"factValues":[{"value":"<p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">The Company\u2019s revenues by product category are as follows (in thousands):</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><table cellpadding=\"0\" style=\"border-spacing:0;text-align:left;font:10pt times new roman;width:100%\"><tbody><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"10\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Year Ended May 31,</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2022</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2021</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2020</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Type of good / service:</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" colspan=\"2\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" colspan=\"2\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" colspan=\"2\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px;text-indent:10pt\">Systems</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">25,224</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">7,250</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">8,099</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px;text-indent:10pt\">Contactors</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">22,647</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">5,837</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">10,784</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px;text-indent:10pt\">Services</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">2,958</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">3,513</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">3,408</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">50,829</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">16,600</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">22,291</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Product lines:</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px;text-indent:10pt\">Wafer-level</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">48,926</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">15,004</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">19,768</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px;text-indent:10pt\">Test During Burn-In</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">1,903</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">1,596</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">2,523</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">50,829</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">16,600</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">22,291</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr></tbody></table><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0\u00a0\u00a0 \u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">The following presents information about the Company\u2019s operations in different geographic areas. Net sales are based upon ship-to location (in thousands):</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0\u00a0 </p><table cellpadding=\"0\" style=\"border-spacing:0;text-align:left;font:10pt times new roman;width:100%\"><tbody><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"10\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Year Ended May 31,</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2022</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2021</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2020</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Geographic region:</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" colspan=\"2\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" colspan=\"2\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" colspan=\"2\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px;text-indent:10pt\">United States</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">5,110</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">5,386</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">13,544</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px;text-indent:10pt\">Asia</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">45,700</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">11,074</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">7,556</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px;text-indent:10pt\">Europe</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">19</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">140</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">1,191</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">50,829</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">16,600</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">22,291</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr></tbody></table><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0\u00a0\u00a0 </p><p style=\"font-size:10pt;font-family:times new roman;margin:0px;text-indent:45px\">With the exception of the amount of service contracts and extended warranties, the Company\u2019s product category revenues are recognized at point in time when control transfers to customers. The following presents revenue based on timing of recognition (in thousands): </p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><table cellpadding=\"0\" style=\"border-spacing:0;text-align:left;font:10pt times new roman;width:100%\"><tbody><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"10\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Year Ended May 31,</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2022</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2021</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2020</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px\"><td style=\"vertical-align:bottom;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Timing of revenue recognition (in thousands):</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"6\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px;text-indent:10pt\">Products and services transferred at a point in time</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">49,441</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">15,009</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">19,948</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px;text-indent:10pt\">Services transferred over time</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">1,388</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">1,591</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">2,343</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">50,829</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">16,600</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">22,291</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr></tbody></table>"}]},{"name":"rpt:f-507","factDimensions":{"xbrl:concept":"us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD","srt:ProductOrServiceAxis":"aehr:SystemsMember"},"factValues":[{"value":"25224000","decimals":-3}]},{"name":"rpt:f-508","factDimensions":{"xbrl:concept":"us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD","srt:ProductOrServiceAxis":"aehr:SystemsMember"},"factValues":[{"value":"7250000","decimals":-3}]},{"name":"rpt:f-509","factDimensions":{"xbrl:concept":"us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax","xbrl:period":"2019-06-01T00:00:00/2020-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD","srt:ProductOrServiceAxis":"aehr:SystemsMember"},"factValues":[{"value":"8099000","decimals":-3}]},{"name":"rpt:f-510","factDimensions":{"xbrl:concept":"us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD","srt:ProductOrServiceAxis":"aehr:ContactorSMember"},"factValues":[{"value":"22647000","decimals":-3}]},{"name":"rpt:f-511","factDimensions":{"xbrl:concept":"us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD","srt:ProductOrServiceAxis":"aehr:ContactorSMember"},"factValues":[{"value":"5837000","decimals":-3}]},{"name":"rpt:f-512","factDimensions":{"xbrl:concept":"us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax","xbrl:period":"2019-06-01T00:00:00/2020-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD","srt:ProductOrServiceAxis":"aehr:ContactorSMember"},"factValues":[{"value":"10784000","decimals":-3}]},{"name":"rpt:f-513","factDimensions":{"xbrl:concept":"us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD","srt:ProductOrServiceAxis":"aehr:ServicesMember"},"factValues":[{"value":"2958000","decimals":-3}]},{"name":"rpt:f-514","factDimensions":{"xbrl:concept":"us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD","srt:ProductOrServiceAxis":"aehr:ServicesMember"},"factValues":[{"value":"3513000","decimals":-3}]},{"name":"rpt:f-515","factDimensions":{"xbrl:concept":"us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax","xbrl:period":"2019-06-01T00:00:00/2020-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD","srt:ProductOrServiceAxis":"aehr:ServicesMember"},"factValues":[{"value":"3408000","decimals":-3}]},{"name":"rpt:f-516","factDimensions":{"xbrl:concept":"us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"16600000","decimals":-3}]},{"name":"rpt:f-517","factDimensions":{"xbrl:concept":"us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD","srt:ProductOrServiceAxis":"aehr:WaferLevelMember"},"factValues":[{"value":"48926000","decimals":-3}]},{"name":"rpt:f-518","factDimensions":{"xbrl:concept":"us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD","srt:ProductOrServiceAxis":"aehr:WaferLevelMember"},"factValues":[{"value":"15004000","decimals":-3}]},{"name":"rpt:f-519","factDimensions":{"xbrl:concept":"us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax","xbrl:period":"2019-06-01T00:00:00/2020-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD","srt:ProductOrServiceAxis":"aehr:WaferLevelMember"},"factValues":[{"value":"19768000","decimals":-3}]},{"name":"rpt:f-520","factDimensions":{"xbrl:concept":"us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD","srt:ProductOrServiceAxis":"aehr:TestDuringBurnInMember"},"factValues":[{"value":"1903000","decimals":-3}]},{"name":"rpt:f-521","factDimensions":{"xbrl:concept":"us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD","srt:ProductOrServiceAxis":"aehr:TestDuringBurnInMember"},"factValues":[{"value":"1596000","decimals":-3}]},{"name":"rpt:f-522","factDimensions":{"xbrl:concept":"us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax","xbrl:period":"2019-06-01T00:00:00/2020-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD","srt:ProductOrServiceAxis":"aehr:TestDuringBurnInMember"},"factValues":[{"value":"2523000","decimals":-3}]},{"name":"rpt:f-523","factDimensions":{"xbrl:concept":"us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"50829000","decimals":-3}]},{"name":"rpt:f-524","factDimensions":{"xbrl:concept":"us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax","xbrl:period":"2019-06-01T00:00:00/2020-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"22291000","decimals":-3}]},{"name":"rpt:f-525","factDimensions":{"xbrl:concept":"us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD","us-gaap:StatementBusinessSegmentsAxis":"aehr:UnitedStatesMember"},"factValues":[{"value":"5110000","decimals":-3}]},{"name":"rpt:f-526","factDimensions":{"xbrl:concept":"us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD","us-gaap:StatementBusinessSegmentsAxis":"aehr:UnitedStatesMember"},"factValues":[{"value":"5386000","decimals":-3}]},{"name":"rpt:f-527","factDimensions":{"xbrl:concept":"us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax","xbrl:period":"2019-06-01T00:00:00/2020-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD","us-gaap:StatementBusinessSegmentsAxis":"aehr:UnitedStatesMember"},"factValues":[{"value":"13544000","decimals":-3}]},{"name":"rpt:f-528","factDimensions":{"xbrl:concept":"us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD","srt:StatementGeographicalAxis":"aehr:AsiasMember"},"factValues":[{"value":"45700000","decimals":-3}]},{"name":"rpt:f-529","factDimensions":{"xbrl:concept":"us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD","srt:StatementGeographicalAxis":"aehr:AsiasMember"},"factValues":[{"value":"11074000","decimals":-3}]},{"name":"rpt:f-530","factDimensions":{"xbrl:concept":"us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax","xbrl:period":"2019-06-01T00:00:00/2020-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD","srt:StatementGeographicalAxis":"aehr:AsiasMember"},"factValues":[{"value":"7556000","decimals":-3}]},{"name":"rpt:f-531","factDimensions":{"xbrl:concept":"us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD","srt:StatementGeographicalAxis":"aehr:EuropesMember"},"factValues":[{"value":"19000","decimals":-3}]},{"name":"rpt:f-532","factDimensions":{"xbrl:concept":"us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD","srt:StatementGeographicalAxis":"aehr:EuropesMember"},"factValues":[{"value":"140000","decimals":-3}]},{"name":"rpt:f-533","factDimensions":{"xbrl:concept":"us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax","xbrl:period":"2019-06-01T00:00:00/2020-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD","srt:StatementGeographicalAxis":"aehr:EuropesMember"},"factValues":[{"value":"1191000","decimals":-3}]},{"name":"rpt:f-534","factDimensions":{"xbrl:concept":"us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"50829000","decimals":-3}]},{"name":"rpt:f-535","factDimensions":{"xbrl:concept":"us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"16600000","decimals":-3}]},{"name":"rpt:f-536","factDimensions":{"xbrl:concept":"us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax","xbrl:period":"2019-06-01T00:00:00/2020-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"22291000","decimals":-3}]},{"name":"rpt:f-537","factDimensions":{"xbrl:concept":"us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD","us-gaap:TimingOfTransferOfGoodOrServiceAxis":"aehr:ProductsAndServicesTransferredAtAPointInTimeMember"},"factValues":[{"value":"49441000","decimals":-3}]},{"name":"rpt:f-538","factDimensions":{"xbrl:concept":"us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD","us-gaap:TimingOfTransferOfGoodOrServiceAxis":"aehr:ProductsAndServicesTransferredAtAPointInTimeMember"},"factValues":[{"value":"15009000","decimals":-3}]},{"name":"rpt:f-539","factDimensions":{"xbrl:concept":"us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax","xbrl:period":"2019-06-01T00:00:00/2020-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD","us-gaap:TimingOfTransferOfGoodOrServiceAxis":"aehr:ProductsAndServicesTransferredAtAPointInTimeMember"},"factValues":[{"value":"19948000","decimals":-3}]},{"name":"rpt:f-540","factDimensions":{"xbrl:concept":"us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD","us-gaap:TimingOfTransferOfGoodOrServiceAxis":"aehr:ServicesTransferredOverTimeMember"},"factValues":[{"value":"1388000","decimals":-3}]},{"name":"rpt:f-541","factDimensions":{"xbrl:concept":"us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD","us-gaap:TimingOfTransferOfGoodOrServiceAxis":"aehr:ServicesTransferredOverTimeMember"},"factValues":[{"value":"1591000","decimals":-3}]},{"name":"rpt:f-542","factDimensions":{"xbrl:concept":"us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax","xbrl:period":"2019-06-01T00:00:00/2020-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD","us-gaap:TimingOfTransferOfGoodOrServiceAxis":"aehr:ServicesTransferredOverTimeMember"},"factValues":[{"value":"2343000","decimals":-3}]},{"name":"rpt:f-543","factDimensions":{"xbrl:concept":"us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"50829000","decimals":-3}]},{"name":"rpt:f-544","factDimensions":{"xbrl:concept":"us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"16600000","decimals":-3}]},{"name":"rpt:f-545","factDimensions":{"xbrl:concept":"us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax","xbrl:period":"2019-06-01T00:00:00/2020-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"22291000","decimals":-3}]},{"name":"rpt:f-546","factDimensions":{"xbrl:concept":"us-gaap:ContractWithCustomerLiability","xbrl:period":"2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"2484000","decimals":0}]},{"name":"rpt:f-547","factDimensions":{"xbrl:concept":"us-gaap:ContractWithCustomerLiability","xbrl:period":"2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"288000","decimals":0}]},{"name":"rpt:f-548","factDimensions":{"xbrl:concept":"us-gaap:ContractWithCustomerLiabilityRevenueRecognized","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"189000","decimals":0}]},{"name":"rpt:f-549","factDimensions":{"xbrl:concept":"us-gaap:ContractWithCustomerLiabilityRevenueRecognized","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"164000","decimals":0}]},{"name":"rpt:f-550","factDimensions":{"xbrl:concept":"us-gaap:RevenueRemainingPerformanceObligation","xbrl:period":"2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"212000","decimals":0}]},{"name":"rpt:f-551","factDimensions":{"xbrl:concept":"us-gaap:RevenueRemainingPerformanceObligationPercentage","xbrl:period":"2023-06-01T00:00:00","xbrl:entity":"cik:0001040470","srt:StatementScenarioAxis":"srt:ScenarioForecastMember"},"factValues":[{"value":"0.68"}]},{"name":"rpt:f-552","factDimensions":{"xbrl:concept":"us-gaap:RevenueRemainingPerformanceObligationPercentage","xbrl:period":"2024-06-01T00:00:00","xbrl:entity":"cik:0001040470","srt:StatementScenarioAxis":"srt:ScenarioForecastMember"},"factValues":[{"value":"0.32"}]},{"name":"rpt:f-553","factDimensions":{"xbrl:concept":"us-gaap:EarningsPerShareTextBlock","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470"},"factValues":[{"value":"<p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\"><strong>3. EARNINGS PER SHARE (\u201cEPS\u201d):</strong></p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">Basic EPS is determined using the weighted average number of common shares outstanding during the period. Diluted EPS is determined using the weighted average number of common shares and potential common shares (representing the dilutive effect of stock options, RSUs and ESPP shares) outstanding during the period using the treasury stock method.</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">The following table presents the computation of basic and diluted net income (loss) per share attributable to Aehr Test Systems common shareholders (in thousands, except per share data):</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><table cellpadding=\"0\" style=\"border-spacing:0;text-align:left;font:10pt times new roman;width:100%\"><tbody><tr style=\"height:15px\"><td></td><td></td><td colspan=\"10\" style=\"BORDER-BOTTOM: #000000 1px solid;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Year Ended May 31,</p></td><td><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">\u00a0</p></td></tr><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2022</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2021</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2020</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Numerator: Net income (loss)</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">9,450</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">(2,027</td><td style=\"PADDING-BOTTOM: 3px;width:1%;vertical-align:bottom;white-space: nowrap;\">)</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">(2,802</td><td style=\"PADDING-BOTTOM: 3px;width:1%;vertical-align:bottom;white-space: nowrap;\">)</td></tr><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Denominator for basic net income (loss) per share:</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"MARGIN: 0px 0px 0px 15px;vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px 0px 0px 15px\">Weighted average shares outstanding</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">26,014</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">23,457</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">22,882</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Shares used in basic net income (loss) per share calculation</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">26,014</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">23,457</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">22,882</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Effect of dilutive securities</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">1,760</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">--</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">--</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Denominator for diluted net income (loss) per share</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">27,774</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">23,457</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">22,882</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Basic net income (loss) per share</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">0.36</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">(0.09</td><td style=\"PADDING-BOTTOM: 3px;width:1%;vertical-align:bottom;white-space: nowrap;\">)</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">(0.12</td><td style=\"PADDING-BOTTOM: 3px;width:1%;vertical-align:bottom;white-space: nowrap;\">)</td></tr><tr style=\"height:15px;background-color:#ffffff\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Diluted net income (loss) per share</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">0.34</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">(0.09</td><td style=\"PADDING-BOTTOM: 3px;width:1%;vertical-align:bottom;white-space: nowrap;\">)</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">(0.12</td><td style=\"PADDING-BOTTOM: 3px;width:1%;vertical-align:bottom;white-space: nowrap;\">)</td></tr></tbody></table><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0 </p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">For the purpose of computing diluted earnings per share, the weighted average number of potential common shares does not include stock options with an exercise price greater than the average fair value of the Company\u2019s common stock for the period, as the effect would be anti-dilutive. Stock options to purchase 64,000 shares of common stock were outstanding as of May 31, 2022 but were not included in the computation of diluted net income per share, because the inclusion of such shares would be anti-dilutive. In the fiscal year ended May 31, 2021 and 2020, potential common shares have not been included in the calculation of diluted net loss per share as the effect would be anti-dilutive. As such, the numerator and the denominator used in computing both basic and diluted net loss per share for these periods are the same. Stock options to purchase 2,766,000 and 3,153,000 shares of common stock were outstanding on May 31, 2021 and 2020, respectively, but were not included in the computation of diluted net loss per share, because the inclusion of such shares would be anti-dilutive. ESPP rights to purchase 239,000 and 192,000 ESPP shares were outstanding on May 31, 2021 and 2020, respectively, but were not included in the computation of diluted net loss per share, because the inclusion of such shares would be anti-dilutive. RSUs for 132,000 shares and 10,000 shares were outstanding on May 31, 2021 and 2020, respectively, but were not included in the computation of diluted net loss per share, because the inclusion of such shares would be anti-dilutive.</p>"}]},{"name":"rpt:f-554","factDimensions":{"xbrl:concept":"us-gaap:ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470"},"factValues":[{"value":"<p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">The following table presents the computation of basic and diluted net income (loss) per share attributable to Aehr Test Systems common shareholders (in thousands, except per share data):</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><table cellpadding=\"0\" style=\"border-spacing:0;text-align:left;font:10pt times new roman;width:100%\"><tbody><tr style=\"height:15px\"><td></td><td></td><td colspan=\"10\" style=\"BORDER-BOTTOM: #000000 1px solid;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Year Ended May 31,</p></td><td><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">\u00a0</p></td></tr><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2022</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2021</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2020</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Numerator: Net income (loss)</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">9,450</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">(2,027</td><td style=\"PADDING-BOTTOM: 3px;width:1%;vertical-align:bottom;white-space: nowrap;\">)</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">(2,802</td><td style=\"PADDING-BOTTOM: 3px;width:1%;vertical-align:bottom;white-space: nowrap;\">)</td></tr><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Denominator for basic net income (loss) per share:</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"MARGIN: 0px 0px 0px 15px;vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px 0px 0px 15px\">Weighted average shares outstanding</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">26,014</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">23,457</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">22,882</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Shares used in basic net income (loss) per share calculation</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">26,014</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">23,457</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">22,882</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Effect of dilutive securities</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">1,760</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">--</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">--</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Denominator for diluted net income (loss) per share</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">27,774</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">23,457</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">22,882</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Basic net income (loss) per share</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">0.36</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">(0.09</td><td style=\"PADDING-BOTTOM: 3px;width:1%;vertical-align:bottom;white-space: nowrap;\">)</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">(0.12</td><td style=\"PADDING-BOTTOM: 3px;width:1%;vertical-align:bottom;white-space: nowrap;\">)</td></tr><tr style=\"height:15px;background-color:#ffffff\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Diluted net income (loss) per share</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">0.34</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">(0.09</td><td style=\"PADDING-BOTTOM: 3px;width:1%;vertical-align:bottom;white-space: nowrap;\">)</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">(0.12</td><td style=\"PADDING-BOTTOM: 3px;width:1%;vertical-align:bottom;white-space: nowrap;\">)</td></tr></tbody></table>"}]},{"name":"rpt:f-555","factDimensions":{"xbrl:concept":"us-gaap:NetIncomeLoss","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"9450000","decimals":-3}]},{"name":"rpt:f-556","factDimensions":{"xbrl:concept":"us-gaap:NetIncomeLoss","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"-2027000","decimals":-3}]},{"name":"rpt:f-557","factDimensions":{"xbrl:concept":"us-gaap:NetIncomeLoss","xbrl:period":"2019-06-01T00:00:00/2020-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"-2802000","decimals":-3}]},{"name":"rpt:f-558","factDimensions":{"xbrl:concept":"us-gaap:WeightedAverageNumberOfSharesOutstandingBasic","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"xbrla:shares"},"factValues":[{"value":"26014000","decimals":-3}]},{"name":"rpt:f-559","factDimensions":{"xbrl:concept":"us-gaap:WeightedAverageNumberOfSharesOutstandingBasic","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"xbrla:shares"},"factValues":[{"value":"23457000","decimals":-3}]},{"name":"rpt:f-560","factDimensions":{"xbrl:concept":"us-gaap:WeightedAverageNumberOfSharesOutstandingBasic","xbrl:period":"2019-06-01T00:00:00/2020-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"xbrla:shares"},"factValues":[{"value":"22882000","decimals":-3}]},{"name":"rpt:f-561","factDimensions":{"xbrl:concept":"aehr:SharesUsedInBasicNetIncomeLossPerShareCalculation","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"xbrla:shares"},"factValues":[{"value":"26014000","decimals":-3}]},{"name":"rpt:f-562","factDimensions":{"xbrl:concept":"aehr:SharesUsedInBasicNetIncomeLossPerShareCalculation","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"xbrla:shares"},"factValues":[{"value":"23457000","decimals":-3}]},{"name":"rpt:f-563","factDimensions":{"xbrl:concept":"aehr:SharesUsedInBasicNetIncomeLossPerShareCalculation","xbrl:period":"2019-06-01T00:00:00/2020-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"xbrla:shares"},"factValues":[{"value":"22882000","decimals":-3}]},{"name":"rpt:f-564","factDimensions":{"xbrl:concept":"us-gaap:WeightedAverageNumberDilutedSharesOutstandingAdjustment","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"xbrla:shares"},"factValues":[{"value":"1760000","decimals":-3}]},{"name":"rpt:f-565","factDimensions":{"xbrl:concept":"us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"xbrla:shares"},"factValues":[{"value":"27774000","decimals":-3}]},{"name":"rpt:f-566","factDimensions":{"xbrl:concept":"us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"xbrla:shares"},"factValues":[{"value":"23457000","decimals":-3}]},{"name":"rpt:f-567","factDimensions":{"xbrl:concept":"us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding","xbrl:period":"2019-06-01T00:00:00/2020-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"xbrla:shares"},"factValues":[{"value":"22882000","decimals":-3}]},{"name":"rpt:f-568","factDimensions":{"xbrl:concept":"us-gaap:EarningsPerShareBasic","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD/xbrla:shares"},"factValues":[{"value":"0.36"}]},{"name":"rpt:f-569","factDimensions":{"xbrl:concept":"us-gaap:EarningsPerShareBasic","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD/xbrla:shares"},"factValues":[{"value":"-0.09"}]},{"name":"rpt:f-570","factDimensions":{"xbrl:concept":"us-gaap:EarningsPerShareBasic","xbrl:period":"2019-06-01T00:00:00/2020-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD/xbrla:shares"},"factValues":[{"value":"-0.12"}]},{"name":"rpt:f-571","factDimensions":{"xbrl:concept":"us-gaap:EarningsPerShareDiluted","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD/xbrla:shares"},"factValues":[{"value":"0.34"}]},{"name":"rpt:f-572","factDimensions":{"xbrl:concept":"us-gaap:EarningsPerShareDiluted","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD/xbrla:shares"},"factValues":[{"value":"-0.09"}]},{"name":"rpt:f-573","factDimensions":{"xbrl:concept":"us-gaap:EarningsPerShareDiluted","xbrl:period":"2019-06-01T00:00:00/2020-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD/xbrla:shares"},"factValues":[{"value":"-0.12"}]},{"name":"rpt:f-574","factDimensions":{"xbrl:concept":"us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"xbrla:shares","us-gaap:AwardTypeAxis":"us-gaap:StockOptionMember"},"factValues":[{"value":"64000","decimals":0}]},{"name":"rpt:f-575","factDimensions":{"xbrl:concept":"us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"xbrla:shares","us-gaap:AwardTypeAxis":"us-gaap:StockOptionMember"},"factValues":[{"value":"2766000","decimals":0}]},{"name":"rpt:f-576","factDimensions":{"xbrl:concept":"us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount","xbrl:period":"2019-06-01T00:00:00/2020-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"xbrla:shares","us-gaap:AwardTypeAxis":"us-gaap:StockOptionMember"},"factValues":[{"value":"3153000","decimals":0}]},{"name":"rpt:f-577","factDimensions":{"xbrl:concept":"us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"xbrla:shares","us-gaap:EmployeeStockOwnershipPlanESOPDisclosuresByPlanAxis":"us-gaap:EmployeeStockMember"},"factValues":[{"value":"239000","decimals":0}]},{"name":"rpt:f-578","factDimensions":{"xbrl:concept":"us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount","xbrl:period":"2019-06-01T00:00:00/2020-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"xbrla:shares","us-gaap:EmployeeStockOwnershipPlanESOPDisclosuresByPlanAxis":"us-gaap:EmployeeStockMember"},"factValues":[{"value":"192000","decimals":0}]},{"name":"rpt:f-579","factDimensions":{"xbrl:concept":"us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"xbrla:shares","us-gaap:AwardTypeAxis":"us-gaap:RestrictedStockUnitsRSUMember"},"factValues":[{"value":"132000","decimals":0}]},{"name":"rpt:f-580","factDimensions":{"xbrl:concept":"us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount","xbrl:period":"2019-06-01T00:00:00/2020-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"xbrla:shares","us-gaap:AwardTypeAxis":"us-gaap:RestrictedStockUnitsRSUMember"},"factValues":[{"value":"10000","decimals":0}]},{"name":"rpt:f-581","factDimensions":{"xbrl:concept":"us-gaap:FairValueDisclosuresTextBlock","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470"},"factValues":[{"value":"<p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\"><strong>4. FAIR VALUE OF FINANCIAL INSTRUMENTS:</strong></p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">The Company\u2019s financial instruments are measured at fair value consistent with authoritative guidance. This authoritative guidance defines fair value, establishes a framework for using fair value to measure assets and liabilities, and disclosures required related to fair value measurements.</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">The guidance establishes a fair value hierarchy based on inputs to valuation techniques that are used to measure fair value that are either observable or unobservable. Observable inputs reflect assumptions market participants would use in pricing an asset or liability based on market data obtained from independent sources while unobservable inputs reflect a reporting entity\u2019s pricing based upon their own market assumptions. The fair value hierarchy consists of the following three levels:</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">Level 1 - instrument valuations are obtained from real-time quotes for transactions in active exchange markets involving identical assets.</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">Level 2 - instrument valuations are obtained from readily-available pricing sources for comparable instruments.</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">Level 3 - instrument valuations are obtained without observable market values and require a high level of judgment to determine the fair value.</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">The following table summarizes the Company\u2019s financial assets measured at fair value on a recurring basis as of May 31, 2022 (in thousands):</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><table cellpadding=\"0\" style=\"border-spacing:0;text-align:left;font:10pt times new roman;width:100%\"><tbody><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Balance as of</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"width:9%;\"></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">May 31, 2022</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Level 1</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Level 2</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Level 3</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Money market funds</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">28,609</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">28,609</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">-</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">-</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Assets</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">28,609</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">28,609</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">-</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">-</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr></tbody></table><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0\u00a0 </p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px 0px 0px 45px; text-align:justify;\">The following table summarizes the Company\u2019s financial assets measured at fair value on a recurring basis as of May 31, 2021 (in thousands):</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0\u00a0\u00a0 </p><table cellpadding=\"0\" style=\"border-spacing:0;text-align:left;font:10pt times new roman;width:100%\"><tbody><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Balance as of</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"width:9%;\"></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">May 31, 2021</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Level 1</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Level 2</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Level 3</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Money market funds</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">580</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">580</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">-</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">-</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Assets</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">580</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">580</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">-</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">-</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr></tbody></table><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">Included in money market funds as of May 31, 2022 and 2021 is $80,000 of restricted cash representing a security deposit for the Company\u2019s United States manufacturing and office space lease.</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">There were no financial liabilities measured at fair value as of May 31, 2022 and 2021.</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">There were no transfers between Level 1 and Level 2 fair value measurements during the fiscal years ended May 31, 2022 and 2021.</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">The carrying amounts of financial instruments including cash, cash equivalents, receivables, accounts payable and certain other accrued liabilities, approximate fair value due to their short maturities. Based on the borrowing rates currently available to the Company for loans with similar terms, the carrying value of the debt approximates the fair value.</p>"}]},{"name":"rpt:f-582","factDimensions":{"xbrl:concept":"us-gaap:ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470"},"factValues":[{"value":"<p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">The following table summarizes the Company\u2019s financial assets measured at fair value on a recurring basis as of May 31, 2022 (in thousands):</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><table cellpadding=\"0\" style=\"border-spacing:0;text-align:left;font:10pt times new roman;width:100%\"><tbody><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Balance as of</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"width:9%;\"></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">May 31, 2022</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Level 1</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Level 2</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Level 3</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Money market funds</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">28,609</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">28,609</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">-</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">-</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Assets</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">28,609</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">28,609</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">-</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">-</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr></tbody></table><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0\u00a0 </p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px 0px 0px 45px; text-align:justify;\">The following table summarizes the Company\u2019s financial assets measured at fair value on a recurring basis as of May 31, 2021 (in thousands):</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0\u00a0\u00a0 </p><table cellpadding=\"0\" style=\"border-spacing:0;text-align:left;font:10pt times new roman;width:100%\"><tbody><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Balance as of</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"width:9%;\"></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">May 31, 2021</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Level 1</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Level 2</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Level 3</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Money market funds</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">580</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">580</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">-</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">-</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Assets</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">580</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">580</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">-</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">-</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr></tbody></table>"}]},{"name":"rpt:f-583","factDimensions":{"xbrl:concept":"us-gaap:InvestmentsFairValueDisclosure","xbrl:period":"2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD","us-gaap:FairValueByFairValueHierarchyLevelAxis":"us-gaap:FairValueInputsLevel1Member","us-gaap:PlanNameAxis":"aehr:MoneyFundsMember"},"factValues":[{"value":"28609000","decimals":-3}]},{"name":"rpt:f-584","factDimensions":{"xbrl:concept":"us-gaap:InvestmentsFairValueDisclosure","xbrl:period":"2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD","us-gaap:PlanNameAxis":"aehr:MoneyFundsMember"},"factValues":[{"value":"28609000","decimals":-3}]},{"name":"rpt:f-585","factDimensions":{"xbrl:concept":"us-gaap:InvestmentsFairValueDisclosure","xbrl:period":"2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD","us-gaap:FairValueByFairValueHierarchyLevelAxis":"us-gaap:FairValueInputsLevel2Member"},"factValues":[{"value":"0","decimals":-3}]},{"name":"rpt:f-586","factDimensions":{"xbrl:concept":"us-gaap:InvestmentsFairValueDisclosure","xbrl:period":"2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"28609000","decimals":-3}]},{"name":"rpt:f-587","factDimensions":{"xbrl:concept":"us-gaap:InvestmentsFairValueDisclosure","xbrl:period":"2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD","us-gaap:FairValueByFairValueHierarchyLevelAxis":"us-gaap:FairValueInputsLevel1Member"},"factValues":[{"value":"28609000","decimals":-3}]},{"name":"rpt:f-588","factDimensions":{"xbrl:concept":"us-gaap:InvestmentsFairValueDisclosure","xbrl:period":"2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD","us-gaap:FairValueByFairValueHierarchyLevelAxis":"us-gaap:FairValueInputsLevel3Member","us-gaap:PlanNameAxis":"aehr:MoneyFundsMember"},"factValues":[{"value":"0","decimals":-3}]},{"name":"rpt:f-589","factDimensions":{"xbrl:concept":"us-gaap:InvestmentsFairValueDisclosure","xbrl:period":"2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD","us-gaap:FairValueByFairValueHierarchyLevelAxis":"us-gaap:FairValueInputsLevel3Member"},"factValues":[{"value":"0","decimals":-3}]},{"name":"rpt:f-590","factDimensions":{"xbrl:concept":"us-gaap:InvestmentsFairValueDisclosure","xbrl:period":"2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD","us-gaap:PlanNameAxis":"aehr:MoneyFundsMember"},"factValues":[{"value":"580000","decimals":-3}]},{"name":"rpt:f-591","factDimensions":{"xbrl:concept":"us-gaap:InvestmentsFairValueDisclosure","xbrl:period":"2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD","us-gaap:FairValueByFairValueHierarchyLevelAxis":"us-gaap:FairValueInputsLevel1Member","us-gaap:PlanNameAxis":"aehr:MoneyFundsMember"},"factValues":[{"value":"580000","decimals":-3}]},{"name":"rpt:f-592","factDimensions":{"xbrl:concept":"us-gaap:InvestmentsFairValueDisclosure","xbrl:period":"2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD","us-gaap:FairValueByFairValueHierarchyLevelAxis":"us-gaap:FairValueInputsLevel2Member","us-gaap:PlanNameAxis":"aehr:MoneyFundsMember"},"factValues":[{"value":"0","decimals":-3}]},{"name":"rpt:f-593","factDimensions":{"xbrl:concept":"us-gaap:InvestmentsFairValueDisclosure","xbrl:period":"2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD","us-gaap:FairValueByFairValueHierarchyLevelAxis":"us-gaap:FairValueInputsLevel3Member","us-gaap:PlanNameAxis":"aehr:MoneyFundsMember"},"factValues":[{"value":"0","decimals":-3}]},{"name":"rpt:f-594","factDimensions":{"xbrl:concept":"us-gaap:InvestmentsFairValueDisclosure","xbrl:period":"2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"580000","decimals":-3}]},{"name":"rpt:f-595","factDimensions":{"xbrl:concept":"us-gaap:InvestmentsFairValueDisclosure","xbrl:period":"2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD","us-gaap:FairValueByFairValueHierarchyLevelAxis":"us-gaap:FairValueInputsLevel1Member"},"factValues":[{"value":"580000","decimals":-3}]},{"name":"rpt:f-596","factDimensions":{"xbrl:concept":"us-gaap:InvestmentsFairValueDisclosure","xbrl:period":"2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD","us-gaap:FairValueByFairValueHierarchyLevelAxis":"us-gaap:FairValueInputsLevel2Member"},"factValues":[{"value":"0","decimals":-3}]},{"name":"rpt:f-597","factDimensions":{"xbrl:concept":"us-gaap:InvestmentsFairValueDisclosure","xbrl:period":"2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD","us-gaap:FairValueByFairValueHierarchyLevelAxis":"us-gaap:FairValueInputsLevel3Member"},"factValues":[{"value":"0","decimals":-3}]},{"name":"rpt:f-598","factDimensions":{"xbrl:concept":"us-gaap:RestrictedCash","xbrl:period":"2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"80000","decimals":0}]},{"name":"rpt:f-599","factDimensions":{"xbrl:concept":"us-gaap:LoansNotesTradeAndOtherReceivablesDisclosureTextBlock","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470"},"factValues":[{"value":"<p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\"><strong>5. ACCOUNTS RECEIVABLE:</strong></p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">Accounts receivable comprise (in thousands):</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0\u00a0 </p><table cellpadding=\"0\" style=\"border-spacing:0;text-align:left;font:10pt times new roman;width:100%\"><tbody><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"6\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">May 31,</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2022</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2021</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Accounts receivable</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">12,859</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">5,202</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Less: Allowance for doubtful accounts</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">-</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">-</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">12,859</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">5,202</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr></tbody></table><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0\u00a0\u00a0 </p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">Accounts receivable represent customer trade receivables. As of May 31, 2022 and 2021, there were no allowances for doubtful accounts. </p>"}]},{"name":"rpt:f-600","factDimensions":{"xbrl:concept":"us-gaap:ScheduleOfAccountsNotesLoansAndFinancingReceivableTextBlock","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470"},"factValues":[{"value":"<p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">Accounts receivable comprise (in thousands):</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0\u00a0 </p><table cellpadding=\"0\" style=\"border-spacing:0;text-align:left;font:10pt times new roman;width:100%\"><tbody><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"6\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">May 31,</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2022</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2021</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Accounts receivable</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">12,859</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">5,202</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Less: Allowance for doubtful accounts</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">-</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">-</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">12,859</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">5,202</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr></tbody></table>"}]},{"name":"rpt:f-601","factDimensions":{"xbrl:concept":"us-gaap:AccountsReceivableGrossCurrent","xbrl:period":"2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"12859000","decimals":-3}]},{"name":"rpt:f-602","factDimensions":{"xbrl:concept":"us-gaap:AccountsReceivableGrossCurrent","xbrl:period":"2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"5202000","decimals":-3}]},{"name":"rpt:f-603","factDimensions":{"xbrl:concept":"us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent","xbrl:period":"2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"0","decimals":-3}]},{"name":"rpt:f-604","factDimensions":{"xbrl:concept":"us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent","xbrl:period":"2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"0","decimals":-3}]},{"name":"rpt:f-605","factDimensions":{"xbrl:concept":"us-gaap:AccountsReceivableNet","xbrl:period":"2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"12859000","decimals":-3}]},{"name":"rpt:f-606","factDimensions":{"xbrl:concept":"us-gaap:AccountsReceivableNet","xbrl:period":"2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"5202000","decimals":-3}]},{"name":"rpt:f-607","factDimensions":{"xbrl:concept":"us-gaap:SupplementalBalanceSheetDisclosuresTextBlock","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470"},"factValues":[{"value":"<p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\"><strong>6. BALANCE SHEET DETAIL:</strong></p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">INVENTORIES:</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><table cellpadding=\"0\" style=\"border-spacing:0;text-align:left;font:10pt times new roman;width:100%\"><tbody><tr style=\"height:15px\"><td></td><td></td><td colspan=\"6\" style=\"BORDER-BOTTOM: #000000 1px solid;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">May 31,</p></td><td><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">\u00a0</p></td></tr><tr style=\"height:15px\"><td style=\"vertical-align:bottom;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">(In Thousands)</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2022</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2021</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Raw materials and sub-assemblies</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">9,507</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">5,859</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Work in process</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">5,461</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">2,988</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Finished goods</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">83</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">2</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">15,051</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">8,849</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr></tbody></table><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">During the year ended May 31, 2022, 2021, and 2020, the Company wrote down $1,031,000, $176,000, and $1,669,000 of inventory, respectively.</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">PROPERTY AND EQUIPMENT, NET:</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><table cellpadding=\"0\" style=\"border-spacing:0;text-align:left;font:10pt times new roman;width:100%\"><tbody><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"6\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">\u00a0May 31,</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px\"><td style=\"vertical-align:bottom;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">(In Thousands)</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2022</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2021</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Leasehold improvements</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">1,230</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">1,214</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Furniture and fixtures</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">697</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">627</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Machinery and equipment</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">4,013</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">3,343</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Test equipment</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">2,523</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">2,525</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">8,463</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">7,709</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Less: Accumulated depreciation and amortization</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">(7,260</td><td style=\"PADDING-BOTTOM: 1px;width:1%;vertical-align:bottom;white-space: nowrap;\">)</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">(7,032</td><td style=\"PADDING-BOTTOM: 1px;width:1%;vertical-align:bottom;white-space: nowrap;\">)</td></tr><tr style=\"height:15px;background-color:#cceeff\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">1,203</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">677</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr></tbody></table><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">Depreciation expense was $307,000, $310,000 and $384,000 for fiscal 2022, 2021, and 2020, respectively.</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">ACCRUED EXPENSES:</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><table cellpadding=\"0\" style=\"border-spacing:0;text-align:left;font:10pt times new roman;width:100%\"><tbody><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td colspan=\"6\" style=\"BORDER-BOTTOM: #000000 1px solid;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">\u00a0May 31,</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px\"><td style=\"vertical-align:bottom;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">(In Thousands)</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2022</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2021</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Commissions and bonuses \u00a0\u00a0\u00a0\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">1,505</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">413</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Payroll related \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">1,401</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">1,020</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Warranty \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">410</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">494</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Professional services \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">204</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">168</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Investor relations \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">44</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">22</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Accrued interest \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">-</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">16</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Taxes payable \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">13</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">5</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Other \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">33</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">25</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">3,610</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">2,163</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr></tbody></table><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0 </p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">\u00a0CUSTOMER DEPOSITS AND DEFERRED REVENUE, SHORT-TERM:\u00a0 </p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><table cellpadding=\"0\" style=\"border-spacing:0;text-align:left;font:10pt times new roman;width:100%\"><tbody><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"6\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">\u00a0May 31,</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px\"><td style=\"vertical-align:bottom;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">(In Thousands)</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2022</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2021</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Customer deposits \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">2,263</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">27</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Deferred revenue \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">152</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">162</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">2,415</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">189</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr></tbody></table>"}]},{"name":"rpt:f-608","factDimensions":{"xbrl:concept":"us-gaap:ScheduleOfInventoryCurrentTableTextBlock","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470"},"factValues":[{"value":"<p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">INVENTORIES:</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><table cellpadding=\"0\" style=\"border-spacing:0;text-align:left;font:10pt times new roman;width:100%\"><tbody><tr style=\"height:15px\"><td></td><td></td><td colspan=\"6\" style=\"BORDER-BOTTOM: #000000 1px solid;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">May 31,</p></td><td><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">\u00a0</p></td></tr><tr style=\"height:15px\"><td style=\"vertical-align:bottom;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">(In Thousands)</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2022</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2021</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Raw materials and sub-assemblies</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">9,507</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">5,859</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Work in process</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">5,461</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">2,988</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Finished goods</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">83</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">2</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">15,051</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">8,849</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr></tbody></table>"}]},{"name":"rpt:f-609","factDimensions":{"xbrl:concept":"us-gaap:InventoryRawMaterialsNetOfReserves","xbrl:period":"2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"9507000","decimals":-3}]},{"name":"rpt:f-610","factDimensions":{"xbrl:concept":"us-gaap:InventoryRawMaterialsNetOfReserves","xbrl:period":"2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"5859000","decimals":-3}]},{"name":"rpt:f-611","factDimensions":{"xbrl:concept":"us-gaap:InventoryWorkInProcessNetOfReserves","xbrl:period":"2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"5461000","decimals":-3}]},{"name":"rpt:f-612","factDimensions":{"xbrl:concept":"us-gaap:InventoryWorkInProcessNetOfReserves","xbrl:period":"2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"2988000","decimals":-3}]},{"name":"rpt:f-613","factDimensions":{"xbrl:concept":"us-gaap:InventoryFinishedGoodsNetOfReserves","xbrl:period":"2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"83000","decimals":-3}]},{"name":"rpt:f-614","factDimensions":{"xbrl:concept":"us-gaap:InventoryFinishedGoodsNetOfReserves","xbrl:period":"2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"2000","decimals":-3}]},{"name":"rpt:f-615","factDimensions":{"xbrl:concept":"us-gaap:InventoryNet","xbrl:period":"2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"15051000","decimals":-3}]},{"name":"rpt:f-616","factDimensions":{"xbrl:concept":"us-gaap:InventoryNet","xbrl:period":"2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"8849000","decimals":-3}]},{"name":"rpt:f-617","factDimensions":{"xbrl:concept":"us-gaap:InventoryWriteDown","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"1031000","decimals":0}]},{"name":"rpt:f-618","factDimensions":{"xbrl:concept":"us-gaap:InventoryWriteDown","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"176000","decimals":0}]},{"name":"rpt:f-619","factDimensions":{"xbrl:concept":"us-gaap:InventoryWriteDown","xbrl:period":"2019-06-01T00:00:00/2020-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"1669000","decimals":0}]},{"name":"rpt:f-620","factDimensions":{"xbrl:concept":"us-gaap:PropertyPlantAndEquipmentTextBlock","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470"},"factValues":[{"value":"<p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">PROPERTY AND EQUIPMENT, NET:</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><table cellpadding=\"0\" style=\"border-spacing:0;text-align:left;font:10pt times new roman;width:100%\"><tbody><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"6\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">\u00a0May 31,</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px\"><td style=\"vertical-align:bottom;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">(In Thousands)</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2022</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2021</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Leasehold improvements</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">1,230</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">1,214</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Furniture and fixtures</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">697</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">627</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Machinery and equipment</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">4,013</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">3,343</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Test equipment</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">2,523</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">2,525</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">8,463</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">7,709</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Less: Accumulated depreciation and amortization</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">(7,260</td><td style=\"PADDING-BOTTOM: 1px;width:1%;vertical-align:bottom;white-space: nowrap;\">)</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">(7,032</td><td style=\"PADDING-BOTTOM: 1px;width:1%;vertical-align:bottom;white-space: nowrap;\">)</td></tr><tr style=\"height:15px;background-color:#cceeff\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">1,203</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">677</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr></tbody></table>"}]},{"name":"rpt:f-621","factDimensions":{"xbrl:concept":"us-gaap:LeaseholdImprovementsGross","xbrl:period":"2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"1230000","decimals":-3}]},{"name":"rpt:f-622","factDimensions":{"xbrl:concept":"us-gaap:LeaseholdImprovementsGross","xbrl:period":"2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"1214000","decimals":-3}]},{"name":"rpt:f-623","factDimensions":{"xbrl:concept":"us-gaap:FurnitureAndFixturesGross","xbrl:period":"2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"697000","decimals":-3}]},{"name":"rpt:f-624","factDimensions":{"xbrl:concept":"us-gaap:FurnitureAndFixturesGross","xbrl:period":"2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"627000","decimals":-3}]},{"name":"rpt:f-625","factDimensions":{"xbrl:concept":"us-gaap:MachineryAndEquipmentGross","xbrl:period":"2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"4013000","decimals":-3}]},{"name":"rpt:f-626","factDimensions":{"xbrl:concept":"us-gaap:MachineryAndEquipmentGross","xbrl:period":"2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"3343000","decimals":-3}]},{"name":"rpt:f-627","factDimensions":{"xbrl:concept":"us-gaap:PropertyPlantAndEquipmentOther","xbrl:period":"2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"2523000","decimals":-3}]},{"name":"rpt:f-628","factDimensions":{"xbrl:concept":"us-gaap:PropertyPlantAndEquipmentOther","xbrl:period":"2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"2525000","decimals":-3}]},{"name":"rpt:f-629","factDimensions":{"xbrl:concept":"us-gaap:PropertyPlantAndEquipmentGross","xbrl:period":"2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"8463000","decimals":-3}]},{"name":"rpt:f-630","factDimensions":{"xbrl:concept":"us-gaap:PropertyPlantAndEquipmentGross","xbrl:period":"2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"7709000","decimals":-3}]},{"name":"rpt:f-631","factDimensions":{"xbrl:concept":"us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment","xbrl:period":"2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"7260000","decimals":-3}]},{"name":"rpt:f-632","factDimensions":{"xbrl:concept":"us-gaap:AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment","xbrl:period":"2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"7032000","decimals":-3}]},{"name":"rpt:f-633","factDimensions":{"xbrl:concept":"us-gaap:PropertyPlantAndEquipmentNet","xbrl:period":"2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"1203000","decimals":-3}]},{"name":"rpt:f-634","factDimensions":{"xbrl:concept":"us-gaap:PropertyPlantAndEquipmentNet","xbrl:period":"2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"677000","decimals":-3}]},{"name":"rpt:f-635","factDimensions":{"xbrl:concept":"us-gaap:Depreciation","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"307000","decimals":0}]},{"name":"rpt:f-636","factDimensions":{"xbrl:concept":"us-gaap:Depreciation","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"310000","decimals":0}]},{"name":"rpt:f-637","factDimensions":{"xbrl:concept":"us-gaap:Depreciation","xbrl:period":"2019-06-01T00:00:00/2020-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"384000","decimals":0}]},{"name":"rpt:f-638","factDimensions":{"xbrl:concept":"us-gaap:ScheduleOfAccruedLiabilitiesTableTextBlock","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470"},"factValues":[{"value":"<p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">ACCRUED EXPENSES:</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><table cellpadding=\"0\" style=\"border-spacing:0;text-align:left;font:10pt times new roman;width:100%\"><tbody><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td colspan=\"6\" style=\"BORDER-BOTTOM: #000000 1px solid;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">\u00a0May 31,</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px\"><td style=\"vertical-align:bottom;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">(In Thousands)</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2022</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2021</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Commissions and bonuses \u00a0\u00a0\u00a0\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">1,505</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">413</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Payroll related \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">1,401</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">1,020</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Warranty \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">410</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">494</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Professional services \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">204</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">168</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Investor relations \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">44</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">22</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Accrued interest \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">-</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">16</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Taxes payable \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">13</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">5</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Other \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">33</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">25</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">3,610</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">2,163</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr></tbody></table>"}]},{"name":"rpt:f-639","factDimensions":{"xbrl:concept":"us-gaap:OtherEmployeeRelatedLiabilitiesCurrent","xbrl:period":"2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"1505000","decimals":-3}]},{"name":"rpt:f-640","factDimensions":{"xbrl:concept":"us-gaap:OtherEmployeeRelatedLiabilitiesCurrent","xbrl:period":"2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"413000","decimals":-3}]},{"name":"rpt:f-641","factDimensions":{"xbrl:concept":"us-gaap:EmployeeRelatedLiabilitiesCurrent","xbrl:period":"2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"1401000","decimals":-3}]},{"name":"rpt:f-642","factDimensions":{"xbrl:concept":"us-gaap:EmployeeRelatedLiabilitiesCurrent","xbrl:period":"2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"1020000","decimals":-3}]},{"name":"rpt:f-643","factDimensions":{"xbrl:concept":"us-gaap:ProductWarrantyAccrual","xbrl:period":"2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"410000","decimals":-3}]},{"name":"rpt:f-644","factDimensions":{"xbrl:concept":"us-gaap:ProductWarrantyAccrual","xbrl:period":"2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"494000","decimals":-3}]},{"name":"rpt:f-645","factDimensions":{"xbrl:concept":"us-gaap:AccruedProfessionalFeesCurrent","xbrl:period":"2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"204000","decimals":-3}]},{"name":"rpt:f-646","factDimensions":{"xbrl:concept":"us-gaap:AccruedProfessionalFeesCurrent","xbrl:period":"2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"168000","decimals":-3}]},{"name":"rpt:f-647","factDimensions":{"xbrl:concept":"aehr:InvestorRelations","xbrl:period":"2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"44000","decimals":-3}]},{"name":"rpt:f-648","factDimensions":{"xbrl:concept":"aehr:InvestorRelations","xbrl:period":"2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"22000","decimals":-3}]},{"name":"rpt:f-649","factDimensions":{"xbrl:concept":"us-gaap:InterestPayableCurrent","xbrl:period":"2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"0","decimals":-3}]},{"name":"rpt:f-650","factDimensions":{"xbrl:concept":"us-gaap:InterestPayableCurrent","xbrl:period":"2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"16000","decimals":-3}]},{"name":"rpt:f-651","factDimensions":{"xbrl:concept":"us-gaap:AccruedIncomeTaxesCurrent","xbrl:period":"2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"13000","decimals":-3}]},{"name":"rpt:f-652","factDimensions":{"xbrl:concept":"us-gaap:AccruedIncomeTaxesCurrent","xbrl:period":"2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"5000","decimals":-3}]},{"name":"rpt:f-653","factDimensions":{"xbrl:concept":"us-gaap:OtherAccruedLiabilitiesCurrent","xbrl:period":"2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"33000","decimals":-3}]},{"name":"rpt:f-654","factDimensions":{"xbrl:concept":"us-gaap:OtherAccruedLiabilitiesCurrent","xbrl:period":"2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"25000","decimals":-3}]},{"name":"rpt:f-655","factDimensions":{"xbrl:concept":"us-gaap:AccruedLiabilitiesCurrent","xbrl:period":"2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"3610000","decimals":-3}]},{"name":"rpt:f-656","factDimensions":{"xbrl:concept":"us-gaap:AccruedLiabilitiesCurrent","xbrl:period":"2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"2163000","decimals":-3}]},{"name":"rpt:f-657","factDimensions":{"xbrl:concept":"aehr:CustomerDepositsAndDeferredRevenueTableTextBlock","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470"},"factValues":[{"value":"<p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">\u00a0CUSTOMER DEPOSITS AND DEFERRED REVENUE, SHORT-TERM:\u00a0 </p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><table cellpadding=\"0\" style=\"border-spacing:0;text-align:left;font:10pt times new roman;width:100%\"><tbody><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"6\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">\u00a0May 31,</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px\"><td style=\"vertical-align:bottom;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">(In Thousands)</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2022</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2021</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Customer deposits \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">2,263</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">27</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Deferred revenue \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">152</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">162</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">2,415</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">189</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr></tbody></table>"}]},{"name":"rpt:f-658","factDimensions":{"xbrl:concept":"us-gaap:CustomerDepositsCurrent","xbrl:period":"2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"2263000","decimals":-3}]},{"name":"rpt:f-659","factDimensions":{"xbrl:concept":"us-gaap:CustomerDepositsCurrent","xbrl:period":"2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"27000","decimals":-3}]},{"name":"rpt:f-660","factDimensions":{"xbrl:concept":"us-gaap:DeferredRevenueAndCreditsCurrent","xbrl:period":"2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"152000","decimals":-3}]},{"name":"rpt:f-661","factDimensions":{"xbrl:concept":"us-gaap:DeferredRevenueAndCreditsCurrent","xbrl:period":"2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"162000","decimals":-3}]},{"name":"rpt:f-662","factDimensions":{"xbrl:concept":"aehr:CustomerDepositsAndDeferredRevenueShortTerm","xbrl:period":"2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"2415000","decimals":-3}]},{"name":"rpt:f-663","factDimensions":{"xbrl:concept":"aehr:CustomerDepositsAndDeferredRevenueShortTerm","xbrl:period":"2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"189000","decimals":-3}]},{"name":"rpt:f-664","factDimensions":{"xbrl:concept":"us-gaap:IncomeTaxDisclosureTextBlock","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470"},"factValues":[{"value":"<p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\"><strong>7. INCOME TAXES:</strong></p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">Domestic and foreign components of income (loss) before income tax (expense) benefit are as follows (in thousands):</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><table cellpadding=\"0\" style=\"border-spacing:0;text-align:left;font:10pt times new roman;width:100%\"><tbody><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"10\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Year Ended May 31,</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2022</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2021</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2020</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Domestic \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">9,416</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">(13,064</td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">)</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">(2,751</td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">)</td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Foreign \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">125</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">10,860</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">(15</td><td style=\"PADDING-BOTTOM: 1px;width:1%;vertical-align:bottom;white-space: nowrap;\">)</td></tr><tr style=\"height:15px;background-color:#cceeff\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">9,541</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">(2,204</td><td style=\"PADDING-BOTTOM: 3px;width:1%;vertical-align:bottom;white-space: nowrap;\">)</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">(2,766</td><td style=\"PADDING-BOTTOM: 3px;width:1%;vertical-align:bottom;white-space: nowrap;\">)</td></tr></tbody></table><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">The income tax (expense) benefit consists of the following (in thousands):</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><table cellpadding=\"0\" style=\"border-spacing:0;text-align:left;font:10pt times new roman;width:100%\"><tbody><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"10\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Year Ended May 31,</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2022</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2021</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2020</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Federal income taxes:</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" colspan=\"2\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" colspan=\"2\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" colspan=\"2\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px 0px 0px 15px\">Current</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">(59</td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">)</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">163</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">-</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px 0px 0px 15px\">Deferred</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">-</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">-</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">-</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">State income taxes:</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px 0px 0px 15px\">Current</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">(5</td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">)</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">13</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">(30</td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">)</td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px 0px 0px 15px\">Deferred</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">-</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">-</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">-</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Foreign income taxes:</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px 0px 0px 15px\">Current</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">(27</td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">)</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">1</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">(6</td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">)</td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px 0px 0px 15px\">Deferred</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">-</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">-</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">-</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">(91</td><td style=\"PADDING-BOTTOM: 3px;width:1%;vertical-align:bottom;white-space: nowrap;\">)</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">177</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">(36</td><td style=\"PADDING-BOTTOM: 3px;width:1%;vertical-align:bottom;white-space: nowrap;\">)</td></tr></tbody></table><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0\u00a0 \u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">The Company\u2019s effective\u00a0tax rate differs from the U.S. federal statutory tax rate, as follows:</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><table cellpadding=\"0\" style=\"border-spacing:0;text-align:left;font:10pt times new roman;width:100%\"><tbody><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"10\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Year Ended May 31,</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2022</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2021</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2020</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">US federal statutory tax rate \u00a0\u00a0\u00a0\u00a0\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">21.0</td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">%</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">21.0</td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">%</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">21.0</td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">%</td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">State taxes, net of federal tax effect \u00a0\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">0.1</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">0.6</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">1.4</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Foreign rate differential \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">0.3</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">9.8</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">(21.5</td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">)</td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Stock-based compensation \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">(11.0</td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">)</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">(4.7</td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">)</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">(4.0</td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">)</td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Research and development credit \u00a0\u00a0\u00a0\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">(1.3</td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">)</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">4.0</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">-</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Change in valuation allowance \u00a0\u00a0\u00a0\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">(4.7</td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">)</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">(32.1</td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">)</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">4.3</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Controlled Foreign Corporation Liquidation</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">-</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">9.8</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">-</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">PPP Loan \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">(3.7</td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">)</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">-</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">-</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Other \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">0.4</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">(0.4</td><td style=\"PADDING-BOTTOM: 1px;width:1%;vertical-align:bottom;white-space: nowrap;\">)</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">(2.5</td><td style=\"PADDING-BOTTOM: 1px;width:1%;vertical-align:bottom;white-space: nowrap;\">)</td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Effective tax rate \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">1.1</td><td style=\"PADDING-BOTTOM: 3px;width:1%;vertical-align:bottom;white-space: nowrap;\">%</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">8.0</td><td style=\"PADDING-BOTTOM: 3px;width:1%;vertical-align:bottom;white-space: nowrap;\">%</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">(1.3</td><td style=\"PADDING-BOTTOM: 3px;width:1%;vertical-align:bottom;white-space: nowrap;\">)%</td></tr></tbody></table><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0\u00a0\u00a0 \u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">The components of the net deferred tax assets and liabilities are as follows (in thousands):</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><table cellpadding=\"0\" style=\"border-spacing:0;text-align:left;font:10pt times new roman;width:100%\"><tbody><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"6\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Year Ended May 31,</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">2022</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2021</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Deferred tax assets:</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" colspan=\"2\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" colspan=\"2\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Net operating losses</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">14,912</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">15,584</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Lease Liability</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">218</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">372</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Credit carryforwards</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">5,535</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">5,298</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Inventory reserves</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">934</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">1,006</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Reserves and accruals</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">1,360</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">890</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Other</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">220</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">450</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">23,179</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">23,600</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Deferred tax liabilities:</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Operating lease right-of-use assets</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">(199</td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">)</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">(342</td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">)</td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Less: Valuation allowance</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">(22,980</td><td style=\"PADDING-BOTTOM: 1px;width:1%;vertical-align:bottom;white-space: nowrap;\">)</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">(23,258</td><td style=\"PADDING-BOTTOM: 1px;width:1%;vertical-align:bottom;white-space: nowrap;\">)</td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Net deferred tax assets (liabilities)</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">-</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">-</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr></tbody></table><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0\u00a0\u00a0 \u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">The valuation allowance decreased by $278,000 during fiscal 2022, increased by $2,438,000 during fiscal 2021, and decreased by $118,000 during fiscal 2020. As of May 31, 2022 and 2021, the Company concluded that it is more likely than not that the deferred tax assets will not be realized and therefore provided a full valuation allowance against the deferred tax assets. The Company will continue to evaluate the need for a valuation allowance against its deferred tax assets on a quarterly basis.</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">At May 31, 2022 and 2021, the Company has federal net operating loss carryforwards of approximately $61,068,000 and $64,298,000 respectively, to reduce future taxable income. A portion of the federal net operating losses will begin to expire in 2024. Federal net operating losses of $14,425,000 will carryforward indefinitely and would be subject to an 80% taxable income limitation in the year utilized. At May 31, 2022 and 2021, the Company has state net operating loss carryforwards of $30,043,000 and $29,812,000, respectively, to reduce future taxable income. The state net operating loss carryforwards will begin to expire in 2028.</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">At May 31, 2022 and 2021, the Company has federal research and development credit carryforwards of approximately $2,362,000 and $2,201,000 respectively, to offset future tax liability. The federal credit carryforwards will begin to expire in 2022. At May 31, 2022 and 2021, The Company has state research and development credit carryforwards of approximately $6,152,000 and $5,955,000 respectively, to offset future tax liability. The credit carryforwards are not subject to expiration. The Company also has alternative minimum tax credit carryforwards of $34,000 for state purposes. The credits may be used to offset regular tax and do not expire.</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">Internal Revenue Code of 1986, as amended (\u201cIRC\u201d) Section 382 (\u201c\u00a7382\u201d) limits the use of NOL and tax credit carryforwards in certain situations where changes occur in the stock ownership of a company. In general, if we experience a greater than 50% aggregate change in ownership over a 3-year period, we are subject to an annual limitation under IRC \u00a7382 on the utilization of the Company\u2019s pre-change NOL carryforwards. California and other states have similar laws. The annual limitation generally is determined by multiplying the value of the Company\u2019s stock at the time of such ownership change (subject to certain adjustments) by the applicable long-term exempt rate. Such limitations may result in expiration of a portion of the NOL carryforwards before utilization.</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">The Company has made no provision for U.S. income taxes on undistributed earnings of certain foreign subsidiaries because it is the Company\u2019s intention to permanently reinvest such earnings in its foreign subsidiaries. If such earnings were distributed, the Company would be subject to additional U.S. income tax expense.</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">The Company maintains liabilities for uncertain tax positions. These liabilities involve considerable judgment and estimation and are continuously monitored by management based on the best information available. </p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">The aggregate changes in the balance of gross unrecognized tax benefits are as follows (in thousands):</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><table cellpadding=\"0\" style=\"border-spacing:0;text-align:left;font:10pt times new roman;width:100%\"><tbody><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Beginning balance as of May 31, 2019</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">1,809</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Decreases related to prior year tax positions</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">(11</td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">)</td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Increases related to current year tax positions</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">54</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Balance at May 31, 2020</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">1,852</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Increases related to prior year tax positions</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">11</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Increases related to current year tax positions</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">65</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Balance at May 31, 2021</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">1,928</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Increases related to prior year tax positions</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">12</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Increases related to current year tax positions</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">78</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Balance at May 31, 2022</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">2,018</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr></tbody></table><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0\u00a0\u00a0 \u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">As of May 31, 2022 and 2021, the Company has not recorded interest and penalties associated with its unrecognized tax benefits. The Company\u2019s unrecognized gross tax benefits would not reduce the annual effective tax rate if recognized because it has recorded a full valuation allowance on its deferred tax assets. The Company does not foresee any material changes to the gross unrecognized tax benefit within the next twelve months. The Company\u2019s policy is to recognize interest and penalties in income tax expense.</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">The Company\u2019s federal and state income tax returns are subject to possible examination by the taxing authorities until the expiration of the related statutes of limitations on those tax returns. In general, the federal income tax returns have a three-year statute of limitations, and the state income tax returns have a four-year statute of limitations. The Company\u2019s foreign income tax returns are also subject to examination by the foreign tax authorities with the longest statute of limitations period of four-year.</p>"}]},{"name":"rpt:f-665","factDimensions":{"xbrl:concept":"us-gaap:ScheduleOfIncomeBeforeIncomeTaxDomesticAndForeignTableTextBlock","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470"},"factValues":[{"value":"<p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">Domestic and foreign components of income (loss) before income tax (expense) benefit are as follows (in thousands):</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><table cellpadding=\"0\" style=\"border-spacing:0;text-align:left;font:10pt times new roman;width:100%\"><tbody><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"10\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Year Ended May 31,</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2022</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2021</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2020</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Domestic \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">9,416</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">(13,064</td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">)</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">(2,751</td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">)</td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Foreign \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">125</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">10,860</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">(15</td><td style=\"PADDING-BOTTOM: 1px;width:1%;vertical-align:bottom;white-space: nowrap;\">)</td></tr><tr style=\"height:15px;background-color:#cceeff\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">9,541</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">(2,204</td><td style=\"PADDING-BOTTOM: 3px;width:1%;vertical-align:bottom;white-space: nowrap;\">)</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">(2,766</td><td style=\"PADDING-BOTTOM: 3px;width:1%;vertical-align:bottom;white-space: nowrap;\">)</td></tr></tbody></table>"}]},{"name":"rpt:f-666","factDimensions":{"xbrl:concept":"us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"9416000","decimals":-3}]},{"name":"rpt:f-667","factDimensions":{"xbrl:concept":"us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"-13064000","decimals":-3}]},{"name":"rpt:f-668","factDimensions":{"xbrl:concept":"us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic","xbrl:period":"2019-06-01T00:00:00/2020-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"-2751000","decimals":-3}]},{"name":"rpt:f-669","factDimensions":{"xbrl:concept":"us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"125000","decimals":-3}]},{"name":"rpt:f-670","factDimensions":{"xbrl:concept":"us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"10860000","decimals":-3}]},{"name":"rpt:f-671","factDimensions":{"xbrl:concept":"us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign","xbrl:period":"2019-06-01T00:00:00/2020-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"-15000","decimals":-3}]},{"name":"rpt:f-672","factDimensions":{"xbrl:concept":"us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"9541000","decimals":-3}]},{"name":"rpt:f-673","factDimensions":{"xbrl:concept":"us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"-2204000","decimals":-3}]},{"name":"rpt:f-674","factDimensions":{"xbrl:concept":"us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest","xbrl:period":"2019-06-01T00:00:00/2020-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"-2766000","decimals":-3}]},{"name":"rpt:f-675","factDimensions":{"xbrl:concept":"us-gaap:ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470"},"factValues":[{"value":"<p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">The income tax (expense) benefit consists of the following (in thousands):</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><table cellpadding=\"0\" style=\"border-spacing:0;text-align:left;font:10pt times new roman;width:100%\"><tbody><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"10\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Year Ended May 31,</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2022</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2021</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2020</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Federal income taxes:</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" colspan=\"2\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" colspan=\"2\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" colspan=\"2\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px 0px 0px 15px\">Current</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">(59</td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">)</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">163</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">-</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px 0px 0px 15px\">Deferred</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">-</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">-</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">-</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">State income taxes:</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px 0px 0px 15px\">Current</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">(5</td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">)</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">13</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">(30</td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">)</td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px 0px 0px 15px\">Deferred</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">-</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">-</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">-</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Foreign income taxes:</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px 0px 0px 15px\">Current</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">(27</td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">)</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">1</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">(6</td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">)</td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px 0px 0px 15px\">Deferred</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">-</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">-</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">-</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">(91</td><td style=\"PADDING-BOTTOM: 3px;width:1%;vertical-align:bottom;white-space: nowrap;\">)</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">177</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">(36</td><td style=\"PADDING-BOTTOM: 3px;width:1%;vertical-align:bottom;white-space: nowrap;\">)</td></tr></tbody></table>"}]},{"name":"rpt:f-676","factDimensions":{"xbrl:concept":"us-gaap:CurrentFederalTaxExpenseBenefit","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"-59000","decimals":-3}]},{"name":"rpt:f-677","factDimensions":{"xbrl:concept":"us-gaap:CurrentFederalTaxExpenseBenefit","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"163000","decimals":-3}]},{"name":"rpt:f-678","factDimensions":{"xbrl:concept":"us-gaap:CurrentFederalTaxExpenseBenefit","xbrl:period":"2019-06-01T00:00:00/2020-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"0","decimals":-3}]},{"name":"rpt:f-679","factDimensions":{"xbrl:concept":"us-gaap:DeferredFederalIncomeTaxExpenseBenefit","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"0","decimals":-3}]},{"name":"rpt:f-680","factDimensions":{"xbrl:concept":"us-gaap:DeferredFederalIncomeTaxExpenseBenefit","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"0","decimals":-3}]},{"name":"rpt:f-681","factDimensions":{"xbrl:concept":"us-gaap:DeferredFederalIncomeTaxExpenseBenefit","xbrl:period":"2019-06-01T00:00:00/2020-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"0","decimals":-3}]},{"name":"rpt:f-682","factDimensions":{"xbrl:concept":"us-gaap:CurrentStateAndLocalTaxExpenseBenefit","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"-5000","decimals":-3}]},{"name":"rpt:f-683","factDimensions":{"xbrl:concept":"us-gaap:CurrentStateAndLocalTaxExpenseBenefit","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"13000","decimals":-3}]},{"name":"rpt:f-684","factDimensions":{"xbrl:concept":"us-gaap:CurrentStateAndLocalTaxExpenseBenefit","xbrl:period":"2019-06-01T00:00:00/2020-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"-30000","decimals":-3}]},{"name":"rpt:f-685","factDimensions":{"xbrl:concept":"us-gaap:DeferredStateAndLocalIncomeTaxExpenseBenefit","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"0","decimals":-3}]},{"name":"rpt:f-686","factDimensions":{"xbrl:concept":"us-gaap:DeferredStateAndLocalIncomeTaxExpenseBenefit","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"0","decimals":-3}]},{"name":"rpt:f-687","factDimensions":{"xbrl:concept":"us-gaap:DeferredStateAndLocalIncomeTaxExpenseBenefit","xbrl:period":"2019-06-01T00:00:00/2020-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"0","decimals":-3}]},{"name":"rpt:f-688","factDimensions":{"xbrl:concept":"us-gaap:CurrentForeignTaxExpenseBenefit","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"-27000","decimals":-3}]},{"name":"rpt:f-689","factDimensions":{"xbrl:concept":"us-gaap:CurrentForeignTaxExpenseBenefit","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"1000","decimals":-3}]},{"name":"rpt:f-690","factDimensions":{"xbrl:concept":"us-gaap:CurrentForeignTaxExpenseBenefit","xbrl:period":"2019-06-01T00:00:00/2020-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"-6000","decimals":-3}]},{"name":"rpt:f-691","factDimensions":{"xbrl:concept":"us-gaap:DeferredForeignIncomeTaxExpenseBenefit","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"0","decimals":-3}]},{"name":"rpt:f-692","factDimensions":{"xbrl:concept":"us-gaap:DeferredForeignIncomeTaxExpenseBenefit","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"0","decimals":-3}]},{"name":"rpt:f-693","factDimensions":{"xbrl:concept":"us-gaap:DeferredForeignIncomeTaxExpenseBenefit","xbrl:period":"2019-06-01T00:00:00/2020-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"0","decimals":-3}]},{"name":"rpt:f-694","factDimensions":{"xbrl:concept":"us-gaap:IncomeTaxExpenseBenefit","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"-91000","decimals":-3}]},{"name":"rpt:f-695","factDimensions":{"xbrl:concept":"us-gaap:IncomeTaxExpenseBenefit","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"177000","decimals":-3}]},{"name":"rpt:f-696","factDimensions":{"xbrl:concept":"us-gaap:IncomeTaxExpenseBenefit","xbrl:period":"2019-06-01T00:00:00/2020-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"-36000","decimals":-3}]},{"name":"rpt:f-697","factDimensions":{"xbrl:concept":"us-gaap:ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470"},"factValues":[{"value":"<p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">The Company\u2019s effective\u00a0tax rate differs from the U.S. federal statutory tax rate, as follows:</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><table cellpadding=\"0\" style=\"border-spacing:0;text-align:left;font:10pt times new roman;width:100%\"><tbody><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"10\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Year Ended May 31,</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2022</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2021</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2020</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">US federal statutory tax rate \u00a0\u00a0\u00a0\u00a0\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">21.0</td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">%</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">21.0</td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">%</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">21.0</td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">%</td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">State taxes, net of federal tax effect \u00a0\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">0.1</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">0.6</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">1.4</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Foreign rate differential \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">0.3</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">9.8</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">(21.5</td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">)</td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Stock-based compensation \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">(11.0</td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">)</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">(4.7</td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">)</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">(4.0</td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">)</td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Research and development credit \u00a0\u00a0\u00a0\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">(1.3</td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">)</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">4.0</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">-</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Change in valuation allowance \u00a0\u00a0\u00a0\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">(4.7</td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">)</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">(32.1</td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">)</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">4.3</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Controlled Foreign Corporation Liquidation</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">-</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">9.8</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">-</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">PPP Loan \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">(3.7</td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">)</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">-</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">-</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Other \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">0.4</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">(0.4</td><td style=\"PADDING-BOTTOM: 1px;width:1%;vertical-align:bottom;white-space: nowrap;\">)</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">(2.5</td><td style=\"PADDING-BOTTOM: 1px;width:1%;vertical-align:bottom;white-space: nowrap;\">)</td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Effective tax rate \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">1.1</td><td style=\"PADDING-BOTTOM: 3px;width:1%;vertical-align:bottom;white-space: nowrap;\">%</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">8.0</td><td style=\"PADDING-BOTTOM: 3px;width:1%;vertical-align:bottom;white-space: nowrap;\">%</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">(1.3</td><td style=\"PADDING-BOTTOM: 3px;width:1%;vertical-align:bottom;white-space: nowrap;\">)%</td></tr></tbody></table>"}]},{"name":"rpt:f-698","factDimensions":{"xbrl:concept":"us-gaap:EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470"},"factValues":[{"value":"0.210"}]},{"name":"rpt:f-699","factDimensions":{"xbrl:concept":"us-gaap:EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470"},"factValues":[{"value":"0.210"}]},{"name":"rpt:f-700","factDimensions":{"xbrl:concept":"us-gaap:EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate","xbrl:period":"2019-06-01T00:00:00/2020-06-01T00:00:00","xbrl:entity":"cik:0001040470"},"factValues":[{"value":"0.210"}]},{"name":"rpt:f-701","factDimensions":{"xbrl:concept":"us-gaap:EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470"},"factValues":[{"value":"0.001"}]},{"name":"rpt:f-702","factDimensions":{"xbrl:concept":"us-gaap:EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470"},"factValues":[{"value":"0.006"}]},{"name":"rpt:f-703","factDimensions":{"xbrl:concept":"us-gaap:EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes","xbrl:period":"2019-06-01T00:00:00/2020-06-01T00:00:00","xbrl:entity":"cik:0001040470"},"factValues":[{"value":"0.014"}]},{"name":"rpt:f-704","factDimensions":{"xbrl:concept":"us-gaap:EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470"},"factValues":[{"value":"0.003"}]},{"name":"rpt:f-705","factDimensions":{"xbrl:concept":"us-gaap:EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470"},"factValues":[{"value":"0.098"}]},{"name":"rpt:f-706","factDimensions":{"xbrl:concept":"us-gaap:EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential","xbrl:period":"2019-06-01T00:00:00/2020-06-01T00:00:00","xbrl:entity":"cik:0001040470"},"factValues":[{"value":"-0.215"}]},{"name":"rpt:f-707","factDimensions":{"xbrl:concept":"us-gaap:EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470"},"factValues":[{"value":"-0.110"}]},{"name":"rpt:f-708","factDimensions":{"xbrl:concept":"us-gaap:EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470"},"factValues":[{"value":"-0.047"}]},{"name":"rpt:f-709","factDimensions":{"xbrl:concept":"us-gaap:EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost","xbrl:period":"2019-06-01T00:00:00/2020-06-01T00:00:00","xbrl:entity":"cik:0001040470"},"factValues":[{"value":"-0.040"}]},{"name":"rpt:f-710","factDimensions":{"xbrl:concept":"us-gaap:EffectiveIncomeTaxRateReconciliationTaxCreditsResearch","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470"},"factValues":[{"value":"-0.013"}]},{"name":"rpt:f-711","factDimensions":{"xbrl:concept":"us-gaap:EffectiveIncomeTaxRateReconciliationTaxCreditsResearch","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470"},"factValues":[{"value":"0.040"}]},{"name":"rpt:f-712","factDimensions":{"xbrl:concept":"us-gaap:EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470"},"factValues":[{"value":"-0.047"}]},{"name":"rpt:f-713","factDimensions":{"xbrl:concept":"us-gaap:EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470"},"factValues":[{"value":"-0.321"}]},{"name":"rpt:f-714","factDimensions":{"xbrl:concept":"us-gaap:EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance","xbrl:period":"2019-06-01T00:00:00/2020-06-01T00:00:00","xbrl:entity":"cik:0001040470"},"factValues":[{"value":"0.043"}]},{"name":"rpt:f-715","factDimensions":{"xbrl:concept":"us-gaap:EffectiveIncomeTaxRateReconciliationDispositionOfBusiness","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470"},"factValues":[{"value":"0.098"}]},{"name":"rpt:f-716","factDimensions":{"xbrl:concept":"us-gaap:EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470"},"factValues":[{"value":"-0.037"}]},{"name":"rpt:f-717","factDimensions":{"xbrl:concept":"us-gaap:EffectiveIncomeTaxRateReconciliationOtherAdjustments","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470"},"factValues":[{"value":"0.004"}]},{"name":"rpt:f-718","factDimensions":{"xbrl:concept":"us-gaap:EffectiveIncomeTaxRateReconciliationOtherAdjustments","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470"},"factValues":[{"value":"-0.004"}]},{"name":"rpt:f-719","factDimensions":{"xbrl:concept":"us-gaap:EffectiveIncomeTaxRateReconciliationOtherAdjustments","xbrl:period":"2019-06-01T00:00:00/2020-06-01T00:00:00","xbrl:entity":"cik:0001040470"},"factValues":[{"value":"-0.025"}]},{"name":"rpt:f-720","factDimensions":{"xbrl:concept":"us-gaap:EffectiveIncomeTaxRateContinuingOperations","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470"},"factValues":[{"value":"0.011"}]},{"name":"rpt:f-721","factDimensions":{"xbrl:concept":"us-gaap:EffectiveIncomeTaxRateContinuingOperations","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470"},"factValues":[{"value":"0.080"}]},{"name":"rpt:f-722","factDimensions":{"xbrl:concept":"us-gaap:EffectiveIncomeTaxRateContinuingOperations","xbrl:period":"2019-06-01T00:00:00/2020-06-01T00:00:00","xbrl:entity":"cik:0001040470"},"factValues":[{"value":"-0.013"}]},{"name":"rpt:f-723","factDimensions":{"xbrl:concept":"us-gaap:ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470"},"factValues":[{"value":"<p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">The components of the net deferred tax assets and liabilities are as follows (in thousands):</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><table cellpadding=\"0\" style=\"border-spacing:0;text-align:left;font:10pt times new roman;width:100%\"><tbody><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"6\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Year Ended May 31,</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">2022</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2021</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Deferred tax assets:</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" colspan=\"2\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" colspan=\"2\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Net operating losses</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">14,912</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">15,584</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Lease Liability</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">218</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">372</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Credit carryforwards</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">5,535</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">5,298</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Inventory reserves</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">934</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">1,006</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Reserves and accruals</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">1,360</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">890</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Other</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">220</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">450</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">23,179</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">23,600</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Deferred tax liabilities:</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Operating lease right-of-use assets</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">(199</td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">)</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">(342</td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">)</td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Less: Valuation allowance</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">(22,980</td><td style=\"PADDING-BOTTOM: 1px;width:1%;vertical-align:bottom;white-space: nowrap;\">)</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">(23,258</td><td style=\"PADDING-BOTTOM: 1px;width:1%;vertical-align:bottom;white-space: nowrap;\">)</td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Net deferred tax assets (liabilities)</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">-</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">-</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr></tbody></table>"}]},{"name":"rpt:f-724","factDimensions":{"xbrl:concept":"us-gaap:DeferredTaxAssetsOperatingLossCarryforwards","xbrl:period":"2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"14912000","decimals":-3}]},{"name":"rpt:f-725","factDimensions":{"xbrl:concept":"us-gaap:DeferredTaxAssetsOperatingLossCarryforwards","xbrl:period":"2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"15584000","decimals":-3}]},{"name":"rpt:f-726","factDimensions":{"xbrl:concept":"aehr:DeferredTaxAssetsLeaseLiabilities","xbrl:period":"2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"218000","decimals":-3}]},{"name":"rpt:f-727","factDimensions":{"xbrl:concept":"aehr:DeferredTaxAssetsLeaseLiabilities","xbrl:period":"2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"372000","decimals":-3}]},{"name":"rpt:f-728","factDimensions":{"xbrl:concept":"us-gaap:DeferredTaxAssetsTaxCreditCarryforwards","xbrl:period":"2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"5535000","decimals":-3}]},{"name":"rpt:f-729","factDimensions":{"xbrl:concept":"us-gaap:DeferredTaxAssetsTaxCreditCarryforwards","xbrl:period":"2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"5298000","decimals":-3}]},{"name":"rpt:f-730","factDimensions":{"xbrl:concept":"us-gaap:DeferredTaxAssetsInventory","xbrl:period":"2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"934000","decimals":-3}]},{"name":"rpt:f-731","factDimensions":{"xbrl:concept":"us-gaap:DeferredTaxAssetsInventory","xbrl:period":"2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"1006000","decimals":-3}]},{"name":"rpt:f-732","factDimensions":{"xbrl:concept":"us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsReserves","xbrl:period":"2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"1360000","decimals":-3}]},{"name":"rpt:f-733","factDimensions":{"xbrl:concept":"us-gaap:DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsReserves","xbrl:period":"2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"890000","decimals":-3}]},{"name":"rpt:f-734","factDimensions":{"xbrl:concept":"us-gaap:DeferredTaxAssetsOther","xbrl:period":"2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"220000","decimals":-3}]},{"name":"rpt:f-735","factDimensions":{"xbrl:concept":"us-gaap:DeferredTaxAssetsOther","xbrl:period":"2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"450000","decimals":-3}]},{"name":"rpt:f-736","factDimensions":{"xbrl:concept":"us-gaap:DeferredTaxAssetsGross","xbrl:period":"2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"23179000","decimals":-3}]},{"name":"rpt:f-737","factDimensions":{"xbrl:concept":"us-gaap:DeferredTaxAssetsGross","xbrl:period":"2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"23600000","decimals":-3}]},{"name":"rpt:f-738","factDimensions":{"xbrl:concept":"us-gaap:DeferredTaxLiabilitiesOther","xbrl:period":"2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"199000","decimals":-3}]},{"name":"rpt:f-739","factDimensions":{"xbrl:concept":"us-gaap:DeferredTaxAssetsValuationAllowance","xbrl:period":"2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"22980000","decimals":-3}]},{"name":"rpt:f-740","factDimensions":{"xbrl:concept":"us-gaap:DeferredTaxAssetsValuationAllowance","xbrl:period":"2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"23258000","decimals":-3}]},{"name":"rpt:f-741","factDimensions":{"xbrl:concept":"us-gaap:DeferredTaxAssetsLiabilitiesNet","xbrl:period":"2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"0","decimals":-3}]},{"name":"rpt:f-742","factDimensions":{"xbrl:concept":"us-gaap:DeferredTaxAssetsLiabilitiesNet","xbrl:period":"2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"0","decimals":-3}]},{"name":"rpt:f-743","factDimensions":{"xbrl:concept":"us-gaap:IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"-278000","decimals":0}]},{"name":"rpt:f-744","factDimensions":{"xbrl:concept":"us-gaap:IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"2438000","decimals":0}]},{"name":"rpt:f-745","factDimensions":{"xbrl:concept":"us-gaap:IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance","xbrl:period":"2019-06-01T00:00:00/2020-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"-118000","decimals":0}]},{"name":"rpt:f-746","factDimensions":{"xbrl:concept":"us-gaap:OperatingLossCarryforwards","xbrl:period":"2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD","us-gaap:IncomeTaxAuthorityAxis":"aehr:FederalMember"},"factValues":[{"value":"61068000","decimals":0}]},{"name":"rpt:f-747","factDimensions":{"xbrl:concept":"us-gaap:OperatingLossCarryforwards","xbrl:period":"2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD","us-gaap:IncomeTaxAuthorityAxis":"aehr:FederalMember"},"factValues":[{"value":"64298000","decimals":0}]},{"name":"rpt:f-748","factDimensions":{"xbrl:concept":"aehr:IndefiniteTaxCreditCarryforwards","xbrl:period":"2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD","us-gaap:IncomeTaxAuthorityAxis":"aehr:FederalMember"},"factValues":[{"value":"14425000","decimals":0}]},{"name":"rpt:f-749","factDimensions":{"xbrl:concept":"us-gaap:OperatingLossCarryforwards","xbrl:period":"2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD","us-gaap:IncomeTaxAuthorityAxis":"aehr:StateMember"},"factValues":[{"value":"30043000","decimals":0}]},{"name":"rpt:f-750","factDimensions":{"xbrl:concept":"us-gaap:OperatingLossCarryforwards","xbrl:period":"2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD","us-gaap:IncomeTaxAuthorityAxis":"aehr:StateMember"},"factValues":[{"value":"29812000","decimals":0}]},{"name":"rpt:f-751","factDimensions":{"xbrl:concept":"us-gaap:IncomeTaxReconciliationTaxCreditsResearch","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD","us-gaap:IncomeTaxAuthorityAxis":"aehr:FederalMember"},"factValues":[{"value":"2362000","decimals":0}]},{"name":"rpt:f-752","factDimensions":{"xbrl:concept":"us-gaap:IncomeTaxReconciliationTaxCreditsResearch","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD","us-gaap:IncomeTaxAuthorityAxis":"aehr:FederalMember"},"factValues":[{"value":"2201000","decimals":0}]},{"name":"rpt:f-753","factDimensions":{"xbrl:concept":"us-gaap:IncomeTaxReconciliationTaxCreditsResearch","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD","us-gaap:IncomeTaxAuthorityAxis":"aehr:StateMember"},"factValues":[{"value":"6152000","decimals":0}]},{"name":"rpt:f-754","factDimensions":{"xbrl:concept":"us-gaap:IncomeTaxReconciliationTaxCreditsResearch","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD","us-gaap:IncomeTaxAuthorityAxis":"aehr:StateMember"},"factValues":[{"value":"5955000","decimals":0}]},{"name":"rpt:f-755","factDimensions":{"xbrl:concept":"us-gaap:DeferredTaxAssetsTaxCreditCarryforwardsAlternativeMinimumTax","xbrl:period":"2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD","us-gaap:IncomeTaxAuthorityAxis":"aehr:StateMember"},"factValues":[{"value":"34000","decimals":0}]},{"name":"rpt:f-756","factDimensions":{"xbrl:concept":"us-gaap:ScheduleOfUnrecognizedTaxBenefitsRollForwardTableTextBlock","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470"},"factValues":[{"value":"<p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">The aggregate changes in the balance of gross unrecognized tax benefits are as follows (in thousands):</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><table cellpadding=\"0\" style=\"border-spacing:0;text-align:left;font:10pt times new roman;width:100%\"><tbody><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Beginning balance as of May 31, 2019</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">1,809</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Decreases related to prior year tax positions</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">(11</td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">)</td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Increases related to current year tax positions</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">54</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Balance at May 31, 2020</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">1,852</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Increases related to prior year tax positions</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">11</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Increases related to current year tax positions</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">65</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Balance at May 31, 2021</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">1,928</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Increases related to prior year tax positions</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">12</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Increases related to current year tax positions</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">78</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Balance at May 31, 2022</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">2,018</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr></tbody></table>"}]},{"name":"rpt:f-757","factDimensions":{"xbrl:concept":"us-gaap:UnrecognizedTaxBenefits","xbrl:period":"2019-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"1809000","decimals":-3}]},{"name":"rpt:f-758","factDimensions":{"xbrl:concept":"us-gaap:UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions","xbrl:period":"2019-06-01T00:00:00/2020-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"11000","decimals":-3}]},{"name":"rpt:f-759","factDimensions":{"xbrl:concept":"us-gaap:UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions","xbrl:period":"2019-06-01T00:00:00/2020-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"54000","decimals":-3}]},{"name":"rpt:f-760","factDimensions":{"xbrl:concept":"us-gaap:UnrecognizedTaxBenefits","xbrl:period":"2020-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"1852000","decimals":-3}]},{"name":"rpt:f-761","factDimensions":{"xbrl:concept":"us-gaap:UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"11000","decimals":-3}]},{"name":"rpt:f-762","factDimensions":{"xbrl:concept":"us-gaap:UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"65000","decimals":-3}]},{"name":"rpt:f-763","factDimensions":{"xbrl:concept":"us-gaap:UnrecognizedTaxBenefits","xbrl:period":"2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"1928000","decimals":-3}]},{"name":"rpt:f-764","factDimensions":{"xbrl:concept":"us-gaap:UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"12000","decimals":-3}]},{"name":"rpt:f-765","factDimensions":{"xbrl:concept":"us-gaap:UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"78000","decimals":-3}]},{"name":"rpt:f-766","factDimensions":{"xbrl:concept":"us-gaap:UnrecognizedTaxBenefits","xbrl:period":"2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"2018000","decimals":-3}]},{"name":"rpt:f-767","factDimensions":{"xbrl:concept":"us-gaap:LesseeOperatingLeasesTextBlock","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470"},"factValues":[{"value":"<p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\"><strong>8. LEASES</strong></p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">The Company leases its manufacturing and office space under operating leases. The principal administrative and production facility is located in Fremont, California, in a 51,289 square foot building. The Company entered into a non-cancelable operating lease agreement for its United States manufacturing and office facility, which was renewed in February 2018 and expires in July 2023. The Company leases a 492 square foot sales and support office in Utting, Germany. The lease, which began February 1, 1992 and expires on January 31, 2024, contains an automatic twelve months renewal, at rates to be determined, if no notice is given prior to six months from expiry. On November 18, 2020, the Company established a wholly owned new subsidiary, Aehr Test Systems Philippines Inc., which has been in full operation since March 2021. The Company leases a facility in Philippines located in a 2,713 square foot building in Clark Freeport Zone, Pampanga. The lease, which began January 1, 2021 and expires on December 31, 2025, contains an option to renew for another three years at rates stipulated in the contract, notice for renewal is given 6 months from expiry. Under the lease agreements, the Company is responsible for payments of utilities, taxes and insurance.</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">The Company has only operating leases for real estate including corporate offices, warehouse space and certain equipment. A lease with an initial term of 12 months or less is generally not recorded on the condensed consolidated balance sheet, unless the arrangement includes an option to purchase the underlying asset, or renew the arrangement that the Company is reasonably certain to exercise (short-term leases). The Company recognizes lease expense on a straight-line basis over the lease term for short-term leases that the Company does not record on its balance sheet. The Company\u2019s operating leases have remaining lease terms of 1 year to 4 years.</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">The Company determines whether an arrangement is or contains a lease based on the unique facts and circumstances present at the inception of the arrangement. Operating lease liabilities and their corresponding right-of-use assets are recorded based on the present value of lease payments over the expected lease term. The interest rate implicit in lease contracts is typically not readily determinable. As such, the Company utilizes the appropriate incremental borrowing rate, which is the rate incurred to borrow on a collateralized basis over a similar term at an amount equal to the lease payments in a similar economic environment. Certain adjustments to the right-of-use asset may be required for items such as initial direct costs paid or incentives received.</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">The weighted average remaining lease term for the Company\u2019s operating leases was 1.4 years at May 31, 2022 and the weighted average discount rate was 5.4%.</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">The Company\u2019s operating lease cost under FASB ASC Topic 842 was $766,000 for the year ended May 31, 2022. The Company\u2019s operating lease cost under FASB ASC Topic 842 was $761,000 for the year ended May 31, 2021.</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">The following table presents supplemental cash flow information related to the Company\u2019s operating leases (in thousands):</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">\u00a0 </p><table cellpadding=\"0\" style=\"border-spacing:0;text-align:left;font:10pt times new roman;width:100%\"><tbody><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"6\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Year Ended May 31, </p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2022</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2021</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Cash paid for amounts included in the measurement of operating lease liabilities:</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" colspan=\"2\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" colspan=\"2\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Operating cash flows from operating leases</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">813</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">779</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Right-of-use assets obtained in exchange for operating leases liabilities</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">-</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">147</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr></tbody></table><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">The following table presents the maturities of the Company\u2019s operating lease liabilities as of May 31, 2022 (in thousands):</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><table cellpadding=\"0\" style=\"border-spacing:0;text-align:left;font:10pt times new roman;width:100%\"><tbody><tr style=\"height:15px\"><td style=\"vertical-align:bottom;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Fiscal year</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Operating Leases</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">2023</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">829</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">2024</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">168</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">2025</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">31</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">2026</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">19</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Thereafter</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">-</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Total future minimum operating lease payments</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">1,047</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Less: imputed interest</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">(41</td><td style=\"PADDING-BOTTOM: 1px;width:1%;vertical-align:bottom;white-space: nowrap;\">)</td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Present value of operating lease liabilities</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">1,006</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr></tbody></table>"}]},{"name":"rpt:f-768","factDimensions":{"xbrl:concept":"us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent","xbrl:period":"2022-06-01T00:00:00","xbrl:entity":"cik:0001040470"},"factValues":[{"value":"0.054"}]},{"name":"rpt:f-769","factDimensions":{"xbrl:concept":"us-gaap:OperatingLeaseCost","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"766000","decimals":0}]},{"name":"rpt:f-770","factDimensions":{"xbrl:concept":"us-gaap:OperatingLeaseCost","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"761000","decimals":0}]},{"name":"rpt:f-771","factDimensions":{"xbrl:concept":"us-gaap:LeaseCostTableTextBlock","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470"},"factValues":[{"value":"<p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">The following table presents supplemental cash flow information related to the Company\u2019s operating leases (in thousands):</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">\u00a0 </p><table cellpadding=\"0\" style=\"border-spacing:0;text-align:left;font:10pt times new roman;width:100%\"><tbody><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"6\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Year Ended May 31, </p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2022</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2021</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Cash paid for amounts included in the measurement of operating lease liabilities:</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" colspan=\"2\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" colspan=\"2\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Operating cash flows from operating leases</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">813</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">779</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Right-of-use assets obtained in exchange for operating leases liabilities</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">-</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">147</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr></tbody></table>"}]},{"name":"rpt:f-772","factDimensions":{"xbrl:concept":"us-gaap:OperatingLeasePayments","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"813000","decimals":-3}]},{"name":"rpt:f-773","factDimensions":{"xbrl:concept":"us-gaap:OperatingLeasePayments","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"779000","decimals":-3}]},{"name":"rpt:f-774","factDimensions":{"xbrl:concept":"us-gaap:RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"0","decimals":-3}]},{"name":"rpt:f-775","factDimensions":{"xbrl:concept":"us-gaap:RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"147000","decimals":-3}]},{"name":"rpt:f-776","factDimensions":{"xbrl:concept":"us-gaap:LesseeOperatingLeaseLiabilityMaturityTableTextBlock","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470"},"factValues":[{"value":"<p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">The following table presents the maturities of the Company\u2019s operating lease liabilities as of May 31, 2022 (in thousands):</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><table cellpadding=\"0\" style=\"border-spacing:0;text-align:left;font:10pt times new roman;width:100%\"><tbody><tr style=\"height:15px\"><td style=\"vertical-align:bottom;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Fiscal year</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Operating Leases</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">2023</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">829</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">2024</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">168</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">2025</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">31</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">2026</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">19</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Thereafter</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">-</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Total future minimum operating lease payments</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">1,047</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Less: imputed interest</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">(41</td><td style=\"PADDING-BOTTOM: 1px;width:1%;vertical-align:bottom;white-space: nowrap;\">)</td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Present value of operating lease liabilities</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">1,006</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr></tbody></table>"}]},{"name":"rpt:f-777","factDimensions":{"xbrl:concept":"us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths","xbrl:period":"2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"829000","decimals":-3}]},{"name":"rpt:f-778","factDimensions":{"xbrl:concept":"us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo","xbrl:period":"2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"168000","decimals":-3}]},{"name":"rpt:f-779","factDimensions":{"xbrl:concept":"us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree","xbrl:period":"2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"31000","decimals":-3}]},{"name":"rpt:f-780","factDimensions":{"xbrl:concept":"us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour","xbrl:period":"2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"19000","decimals":-3}]},{"name":"rpt:f-781","factDimensions":{"xbrl:concept":"us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive","xbrl:period":"2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"0","decimals":-3}]},{"name":"rpt:f-782","factDimensions":{"xbrl:concept":"us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue","xbrl:period":"2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"1047000","decimals":-3}]},{"name":"rpt:f-783","factDimensions":{"xbrl:concept":"us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount","xbrl:period":"2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"41000","decimals":-3}]},{"name":"rpt:f-784","factDimensions":{"xbrl:concept":"us-gaap:OperatingLeaseLiability","xbrl:period":"2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"1006000","decimals":-3}]},{"name":"rpt:f-785","factDimensions":{"xbrl:concept":"us-gaap:DebtDisclosureTextBlock","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470"},"factValues":[{"value":"<p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\"><strong>9. BORROWING AND FINANCING ARRANGEMENTS:</strong></p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">On January 16, 2020, the Company entered into a Loan and Security Agreement (the \u201cLoan Agreement\u201d) with Silicon Valley Bank (\u201cSVB\u201d). Pursuant to the Loan Agreement, the Company may borrow up to (a) the lesser of (i) the revolving line of $4.0 million or (ii) the amount available under the borrowing base minus (b) the outstanding principal balance of any advances, under a revolving line of credit which is collateralized by all the Company\u2019s assets except intellectual property. The borrowing base is 80% of eligible accounts, as determined by SVB from the Company\u2019s most recent borrowing base statement; provided, however, SVB has the right to decrease the foregoing percentage in its good faith business judgment to mitigate the impact of certain events or conditions, which may adversely affect the collateral or its value. Subject to an event of default, the principal amount outstanding under the revolving line of credit will accrue interest at a floating per annum rate equal to the greater of (a) the prime rate plus an additional percentage of up to 1%, which additional percentage depends on the Company\u2019s adjusted quick ratio, and (b) 4.75%. Interest is payable monthly on the last calendar day of each month and the outstanding principal amount, the unpaid interest and all other obligations are due on the maturity date, which is 364 days from the effective date of January 13, 2020.</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">On January 14, 2021, the Company entered into the First Amendment to Loan and Security Agreement (the \u201cFirst Amendment\u201d) with Silicon Valley Bank. The First Amendment, among other things, extends the Revolving Line Maturity Date to July 14, 2021; provided, however, that if the Company achieves specified operating metrics on a consolidated basis on or prior to May 31, 2021 the Amended Revolving Line Maturity Date is extended to January 13, 2022. On July 8, 2021 the Company received confirmation from SVB that the Revolving Line Maturity Date has been extended to January 13, 2022.</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">On January 11, 2022, the Company entered into the Second Amendment to the Loan and Security Agreement (the \u201cSecond Amendment\u201d) with Silicon Valley Bank. The Second Amendment, among other things, (A) increases the available amount of the line up to the lesser of (i) $10 million or (ii) the available amount under the borrowing base, under a revolving line of credit, (B) allows for borrowing up to $3 million of the available balance based upon eligible customer purchase orders, (C) reduces the interest rate for account advances under the line to the greater of (a) prime rate plus an additional percentage up to 1.0%, which additional percentage depends on the Company\u2019s adjusted quick ratio, and (b) 3.25%, reduces the interest rate for purchase order advances under the line to the greater of (a) prime rate plus an additional percentage up to 1.5%, which additional percentage depends on the Company\u2019s adjusted quick ratio, and (b) 3.75%, and (D) extends the maturity date on the loan to January 13, 2023.</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">At May 31, 2022, the Company had not drawn amounts against the credit facility and was in compliance with all covenants related to obligations to meet reporting requirements. The balance available to borrow under the line at May 31, 2022 was $8,794,000. There are no financial covenants in the agreement.</p>"}]},{"name":"rpt:f-786","factDimensions":{"xbrl:concept":"us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity","xbrl:period":"2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD","us-gaap:PlanNameAxis":"aehr:OriginalLoanAndSecurityAgreementMember"},"factValues":[{"value":"4000000","decimals":-6}]},{"name":"rpt:f-787","factDimensions":{"xbrl:concept":"us-gaap:DebtInstrumentInterestRateTerms","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","us-gaap:PlanNameAxis":"aehr:OriginalLoanAndSecurityAgreementMember"},"factValues":[{"value":"the prime rate plus an additional percentage of up to 1%, which additional percentage depends on the Company\u2019s adjusted quick ratio, and (b) 4.75%"}]},{"name":"rpt:f-788","factDimensions":{"xbrl:concept":"us-gaap:LineOfCreditFacilityExpirationDate1","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","us-gaap:PlanNameAxis":"aehr:FirstAmendmentToLoanAndSecurityAgreementMember"},"factValues":[{"value":"2022-01-13"}]},{"name":"rpt:f-789","factDimensions":{"xbrl:concept":"us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity","xbrl:period":"2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD","us-gaap:PlanNameAxis":"aehr:SecondAmendmentToLoanAndSecurityAgreementMember"},"factValues":[{"value":"10000000","decimals":-6}]},{"name":"rpt:f-790","factDimensions":{"xbrl:concept":"us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity","xbrl:period":"2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD","us-gaap:PlanNameAxis":"aehr:SecondAmendmentToLoanAndSecurityAgreementMember","us-gaap:ShortTermDebtTypeAxis":"aehr:CustomerPurchaseOrderMember"},"factValues":[{"value":"3000000","decimals":-6}]},{"name":"rpt:f-791","factDimensions":{"xbrl:concept":"us-gaap:DebtInstrumentInterestRateTerms","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","us-gaap:PlanNameAxis":"aehr:SecondAmendmentToLoanAndSecurityAgreementMember"},"factValues":[{"value":"prime rate plus an additional percentage up to 1.0%, which additional percentage depends on the Company\u2019s adjusted quick ratio, and (b) 3.25%, reduces the interest rate for purchase order advances under the line to the greater of (a) prime rate plus an additional percentage up to 1.5%, which additional percentage depends on the Company\u2019s adjusted quick ratio, and (b) 3.75%"}]},{"name":"rpt:f-792","factDimensions":{"xbrl:concept":"us-gaap:LineOfCreditFacilityExpirationDate1","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","us-gaap:PlanNameAxis":"aehr:SecondAmendmentToLoanAndSecurityAgreementMember"},"factValues":[{"value":"2023-01-13"}]},{"name":"rpt:f-793","factDimensions":{"xbrl:concept":"us-gaap:LineOfCreditFacilityRemainingBorrowingCapacity","xbrl:period":"2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD","us-gaap:PlanNameAxis":"aehr:OriginalLoanAndSecurityAgreementMember"},"factValues":[{"value":"8794000","decimals":0}]},{"name":"rpt:f-794","factDimensions":{"xbrl:concept":"us-gaap:LongTermDebtTextBlock","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470"},"factValues":[{"value":"<p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\"><strong>10. LONG-TERM DEBT:</strong></p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">On April 23, 2020, the Company obtained a PPP Loan in the aggregate amount of $1,679,000 from SVB. The PPP Loan was evidenced by a promissory note dated April 23, 2020 (the \u201cNote\u201d) that matures on April 23, 2022 and bears interest at a rate of 1% per annum, payable monthly commencing on November 23, 2020. The PPP Loan proceeds were used for payroll, health care benefits, rent and utilities.</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">Under the terms of the Coronavirus Aid, Relief, and Economic Security Act (\u201cCARES Act\u201d), PPP loan recipients can apply for and be granted forgiveness for all or a portion of loans granted under the PPP. On June 12, 2021, the Company received confirmation from the SVB that on June 4, 2021, the Small Business Administration approved the Company\u2019s PPP Loan forgiveness application for the entire PPP Loan balance of $1,679,000 and interest totaling $19,000, and the Company recognized a gain on loan forgiveness of $1,698,000. </p>"}]},{"name":"rpt:f-795","factDimensions":{"xbrl:concept":"us-gaap:LoansPayable","xbrl:period":"2020-04-24T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD","us-gaap:LineOfCreditFacilityAxis":"aehr:SiliconValleyBankMember"},"factValues":[{"value":"1679000","decimals":0}]},{"name":"rpt:f-796","factDimensions":{"xbrl:concept":"us-gaap:DebtInstrumentInterestRateStatedPercentage","xbrl:period":"2020-04-24T00:00:00","xbrl:entity":"cik:0001040470","us-gaap:LineOfCreditFacilityAxis":"aehr:SiliconValleyBankMember"},"factValues":[{"value":"0.01"}]},{"name":"rpt:f-797","factDimensions":{"xbrl:concept":"us-gaap:PolicyLoansReceivable","xbrl:period":"2020-04-24T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD","us-gaap:LineOfCreditFacilityAxis":"aehr:SiliconValleyBankMember"},"factValues":[{"value":"1679000","decimals":0}]},{"name":"rpt:f-798","factDimensions":{"xbrl:concept":"aehr:TotalInterest","xbrl:period":"2021-06-13T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD","us-gaap:LineOfCreditFacilityAxis":"aehr:SiliconValleyBankMember"},"factValues":[{"value":"19000","decimals":0}]},{"name":"rpt:f-799","factDimensions":{"xbrl:concept":"us-gaap:FormerGainContingencyRecognizedInCurrentPeriod","xbrl:period":"2021-06-13T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD","us-gaap:LineOfCreditFacilityAxis":"aehr:SiliconValleyBankMember"},"factValues":[{"value":"1698000","decimals":0}]},{"name":"rpt:f-800","factDimensions":{"xbrl:concept":"us-gaap:ShareholdersEquityAndShareBasedPaymentsTextBlock","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470"},"factValues":[{"value":"<p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\"><strong>11. STOCKHOLDERS\u2019 EQUITY AND STOCK-BASED COMPENSATION:</strong></p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">STOCK-BASED COMPENSATION:</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">Stock-based compensation expense consists of expenses for stock options, restricted stock units, or RSUs, and employee stock purchase plan, or ESPP, purchase rights. Stock-based compensation expense for stock options and ESPP purchase rights is measured at each grant date, based on the fair value of the award using the Black-Scholes option valuation model, and is recognized as expense over the employee\u2019s requisite service period. This model was developed for use in estimating the value of publicly traded options that have no vesting restrictions and are fully transferable. The Company\u2019s employee stock options have characteristics significantly different from those of publicly traded options. For RSUs, stock-based compensation expense is based on the fair value of the Company\u2019s common stock at the grant date, and is recognized as expense over the employee\u2019s requisite service period. All of the Company\u2019s stock-based compensation is accounted for as equity instruments.</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px 0px 0px 45px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px 0px 0px 45px; text-align:justify;\">The following table summarizes the stock-based compensation expense for the fiscal years ended May 31, 2022, 2021 and 2020 (in thousands, except per share data):</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><table cellpadding=\"0\" style=\"border-spacing:0;text-align:left;font:10pt times new roman;width:100%\"><tbody><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"10\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Year Ended May 31,</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2022</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2021</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2020</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Stock-based compensation in the form of stock options, RSUs, and ESPP purchase rights, included in:</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" colspan=\"2\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" colspan=\"2\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" colspan=\"2\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" colspan=\"2\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" colspan=\"2\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" colspan=\"2\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Cost of sales</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">234</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">70</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">80</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Selling, general and administrative</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">1,721</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">816</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">631</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Research and development</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">968</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">215</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">199</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Net effect on net income (loss)</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">2,923</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">1,101</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">910</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Effect on net income (loss) per share:</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px 0px 0px 15px\">Basic</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">0.11</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">0.05</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">0.04</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px 0px 0px 15px\">Diluted</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">0.11</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">0.05</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">0.04</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr></tbody></table><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">As of and during the year ended May 31, 2022, there were $83,000 stock-based compensation expenses capitalized as part of inventory. As of and during the years ended May 31, 2021 and 2020, there were no stock-based compensation expenses capitalized as part of inventory.</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">During fiscal 2022, 2021 and fiscal 2020, the Company recorded stock-based compensation related to stock options and restricted stock units of $2,071,000, $993,000 and $751,000, respectively.</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">As of May 31, 2022, the total compensation expense related to unvested stock-based awards under the Company\u2019s 2016 Equity Incentive Plan, but not yet recognized, was $1,905,000 which is net of estimated forfeitures of $5,000. This expense will be amortized on a straight-line basis over a weighted average period of approximately 1.3 years.</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">During fiscal 2022, 2021 and fiscal 2020, the Company recorded stock-based compensation related to its ESPP of $935,000, $108,000 and $159,000, respectively.</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">As of May 31, 2022, the total compensation expense related to purchase rights under the ESPP but not yet recognized was $417,000. This expense will be amortized on a straight-line basis over a weighted average period of approximately 0.8 years.</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">Valuation Assumptions</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">Valuation and Amortization Method. The Company estimates the fair value of stock options granted using the Black-Scholes option valuation method and a single option award approach. The fair value under the single option approach is amortized on a straight-line basis over the requisite service periods of the awards, which is generally the vesting period.</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">Expected Term. The Company\u2019s expected term represents the period that the Company\u2019s stock-based awards are expected to be outstanding and was determined based on historical experience, giving consideration to the contractual terms of the stock-based awards, vesting schedules and expectations of future employee behavior as evidenced by changes to the terms of its stock-based awards.</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">Volatility. Volatility is a measure of the amounts by which a financial variable such as stock price has fluctuated (historical volatility) or is expected to fluctuate (expected volatility) during a period. The Company uses the historical volatility for the past five to six years, based on weighted average of the expected term of option grants, to estimate expected volatility. Volatility for each of the ESPP\u2019s four time periods of six months, twelve months, eighteen months, and twenty-four months is calculated separately and included in the overall stock-based compensation expense recorded.</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">Risk-Free Interest Rate. The Company bases the risk-free interest rate used in the Black-Scholes option valuation method on the implied yield in effect at the time of option grant on U.S. Treasury zero-coupon issues with a remaining term equivalent to the expected term of the stock awards including the ESPP.</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">Fair Value. The fair values of the Company\u2019s stock options granted to employees in fiscal 2022, 2021 and 2020 were estimated using the following weighted average assumptions in the Black-Scholes option valuation method:</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><table cellpadding=\"0\" style=\"border-spacing:0;text-align:left;font:10pt times new roman;width:100%\"><tbody><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"10\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Year Ended May 31,</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2022</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2021</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2020</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" colspan=\"2\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" colspan=\"2\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" colspan=\"2\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Expected term (in years) \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td colspan=\"2\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:right;\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a05 - 6</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">6</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">5</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Volatility\u00a0 \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">88.0</td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">%</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">72.0</td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">%</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">71.5</td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">%</td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Risk-free interest rates \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">1.50</td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">%</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">0.44</td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">%</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">1.56</td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">%</td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Weighted average grant date fair value \u00a0\u00a0\u00a0\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">4.01</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">1.12</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">0.95</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr></tbody></table><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">The fair value of our ESPP purchase rights for the fiscal 2022, 2021 and 2020 was estimated using the following weighted average assumptions:</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><table cellpadding=\"0\" style=\"border-spacing:0;text-align:left;font:10pt times new roman;width:100%\"><tbody><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"10\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Year End May 31, </p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2022</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2021</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2020</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:bottom;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Expected term (in years) \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:right;\">0.5 \u2013 2.0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:right;\">0.5 \u2013 2.0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:right;\">0.5 \u2013 2.0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:bottom;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Volatility \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:right;\">101% \u2013 272</p></td><td style=\"vertical-align:bottom;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">%</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:right;\">74% \u2013 88</p></td><td style=\"vertical-align:bottom;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">%\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:right;\">62% \u2013 77</p></td><td style=\"vertical-align:bottom;white-space: nowrap;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:right;\">%\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:bottom;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Risk-free interest rates \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:right;\">0.05%\u20132.44</p></td><td style=\"vertical-align:bottom;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">%</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:right;\">0.04%\u20130.17</p></td><td style=\"vertical-align:bottom;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">%</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:right;\">0.14%\u20131.81</p></td><td style=\"vertical-align:bottom;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">%</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Weighted average grant date fair value \u00a0\u00a0\u00a0\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">9.68</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">1.03</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">0.79</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr></tbody></table><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0\u00a0\u00a0 \u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">EQUITY INCENTIVE PLAN:</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">In October 2006, the Company\u2019s 2006 Equity Incentive Plan was approved by the shareholders, which provides for granting of incentive stock options, non-statutory stock options, restricted stock, restricted stock units, stock appreciation rights, performance units, performance shares and other stock or cash awards as the Company\u2019s Board of Directors may determine.</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">In October 2016, the Company\u2019s 2016 Equity Incentive Plan was approved by the Company\u2019s shareholders. The 2016 Equity Incentive Plan replaced our 2006 Equity Incentive Plan, which was scheduled to expire in October 2016, and will continue in effect until 2026. A total of 4,848,000 shares of common stock have been reserved for issuance under the Company\u2019s 2016 Equity Incentive Plan, which includes 2,248,000 shares that remained available for issuance under the 2006 Equity Incentive Plan. See the Company\u2019s Registration Statement on Form S-8 filed with the Securities and Exchange Commission on November 16, 2021 for further information regarding the 2016 Equity Incentive Plan.</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">As of May 31, 2022, out of the 3,879,000 shares authorized for grant under the 2016 Equity Incentive Plan, 2,052,000 stock options and RSUs were outstanding. As of May 31, 2021, out of the 4,036,000 shares authorized for grant under the 2016 Equity Incentive Plan, 2,898,000 stock options and RSUs were outstanding. As of May 31, 2020, out of the 4,813,000 shares authorized for grant under the 2016 Equity Incentive Plan, 3,163,000 stock options and RSUs were outstanding.</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">The following tables summarize the Company\u2019s stock option and RSU transactions during fiscal 2022, 2021 and 2020 (in thousands):</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><table cellpadding=\"0\" style=\"border-spacing:0;text-align:left;font:10pt times new roman;width:100%\"><tbody><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"width:9%;vertical-align:bottom;text-align:center;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Available</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Shares</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Balance, May 31, 2019</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">1,147</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px;text-indent:10pt\">Additional shares reserved</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">1,196</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px;text-indent:10pt\">Options granted</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">(738</td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">)</td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px;text-indent:10pt\">RSUs granted</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">(25</td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">)</td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px;text-indent:10pt\">Shares withheld for taxes and not issued</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">6</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px;text-indent:10pt\">Options terminated</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">457</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px;text-indent:10pt\">Options expired</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">(393</td><td style=\"PADDING-BOTTOM: 1px;width:1%;vertical-align:bottom;white-space: nowrap;\">)</td></tr><tr style=\"height:15px;background-color:#cceeff\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Balance, May 31, 2020</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">1,650</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px;text-indent:10pt\">Options granted</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">(297</td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">)</td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px;text-indent:10pt\">RSUs granted</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">(340</td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">)</td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px;text-indent:10pt\">RSUs cancelled</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">1</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px;text-indent:10pt\">Shares withheld for taxes and not issued</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">9</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px;text-indent:10pt\">Options terminated</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">455</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px;text-indent:10pt\">Options expired</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">(341</td><td style=\"PADDING-BOTTOM: 1px;width:1%;vertical-align:bottom;white-space: nowrap;\">)</td></tr><tr style=\"height:15px;background-color:#ffffff\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Balance, May 31, 2021</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">1,137</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px;text-indent:10pt\">Additional shares reserved</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">1,414</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px;text-indent:10pt\">Options granted</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">(303</td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">)</td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px;text-indent:10pt\">RSUs granted</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">(522</td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">)</td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px;text-indent:10pt\">RSUs cancelled</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">10</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px;text-indent:10pt\">Shares withheld for taxes and not issued</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">(15</td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">)</td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px;text-indent:10pt\">Options terminated</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">105</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Balance, May 31, 2022</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">1,826</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr></tbody></table><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0\u00a0\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">The following table summarized the stock option transactions during fiscal 2022, 2021 and 2020 (in thousands, except per share data):</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><table cellpadding=\"0\" style=\"border-spacing:0;text-align:left;font:10pt times new roman;width:100%\"><tbody><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"10\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Outstanding Options</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Weighted</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Number</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Average</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Aggregate</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">of</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Exercise</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Intrinsic</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Shares</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Price</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Value</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Balances, May 31, 2019</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">3,107</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">2.20</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">283</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px;text-indent:10pt\">Options granted</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">738</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">1.61</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px;text-indent:10pt\">Options terminated</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">(457</td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">)</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">1.98</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px;text-indent:10pt\">Options exercised</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">(235</td><td style=\"PADDING-BOTTOM: 1px;width:1%;vertical-align:bottom;white-space: nowrap;\">)</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">1.22</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Balances, May 31, 2020</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">3,153</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">2.17</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">102</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px;text-indent:10pt\">Options granted</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">297</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">1.78</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px;text-indent:10pt\">Options terminated</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">(455</td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">)</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">2.31</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px;text-indent:10pt\">Options exercised</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">(229</td><td style=\"PADDING-BOTTOM: 1px;width:1%;vertical-align:bottom;white-space: nowrap;\">)</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">1.54</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Balances, May 31, 2021</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">2,766</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">2.16</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">807</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px;text-indent:10pt\">Options granted</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">303</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">5.37</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px;text-indent:10pt\">Options terminated</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">(105</td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">)</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">1.59</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px;text-indent:10pt\">Options exercised</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">(1,367</td><td style=\"PADDING-BOTTOM: 1px;width:1%;vertical-align:bottom;white-space: nowrap;\">)</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">2.28</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Balances, May 31, 2022</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">1,597</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">2.70</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">9,290</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Options fully vested and expected to vest at May 31, 2022</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">1,570</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">2.69</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">9,138</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr></tbody></table><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">The options outstanding and exercisable at May 31, 2022 were in the following exercise price ranges (in thousands, except per share data):</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0 </p><table cellpadding=\"0\" style=\"border-spacing:0;text-align:left;font:10pt times new roman;width:100%\"><tbody><tr style=\"height:15px\"><td colspan=\"2\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"10\" style=\"vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Options Outstanding</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"14\" style=\"vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Options Exercisable</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px\"><td colspan=\"2\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"10\" style=\"BORDER-BOTTOM: 1px solid;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">at May 31, 2022</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"14\" style=\"BORDER-BOTTOM: 1px solid;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">at May 31, 2022</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px\"><td colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;vertical-align:bottom;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Range of Exercise</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Prices</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Number Outstanding Shares</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Weighted Average Remaining Contractual Life (Years)</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Weighted Average Exercise Price</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Number Exercisable Shares</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Weighted Average Remaining Contractual Life (Years)</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Weighted Average Exercise Price</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Aggregate Intrinsic Value</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td>1.34</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">51</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">5.39</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">1.34</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">51</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">5.39</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">1.34</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" colspan=\"2\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td colspan=\"2\" style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">$1.64-$1.86</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"vertical-align:bottom;text-align:right;\">659</td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"vertical-align:bottom;text-align:right;\">4.02</td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"vertical-align:bottom;text-align:right;\">1.70</td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"vertical-align:bottom;text-align:right;\">419</td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"vertical-align:bottom;text-align:right;\">3.71</td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"vertical-align:bottom;text-align:right;\">1.69</td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" colspan=\"2\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td colspan=\"2\" style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">$2.03-$2.42</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"vertical-align:bottom;text-align:right;\">471</td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"vertical-align:bottom;text-align:right;\">3.33</td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"vertical-align:bottom;text-align:right;\">2.25</td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"vertical-align:bottom;text-align:right;\">408</td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"vertical-align:bottom;text-align:right;\">3.21</td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"vertical-align:bottom;text-align:right;\">2.26</td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" colspan=\"2\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td colspan=\"2\" style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">$2.76-$2.93</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"vertical-align:bottom;text-align:right;\">215</td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"vertical-align:bottom;text-align:right;\">5.60</td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"vertical-align:bottom;text-align:right;\">2.91</td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"vertical-align:bottom;text-align:right;\">56</td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"vertical-align:bottom;text-align:right;\">4.12</td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"vertical-align:bottom;text-align:right;\">2.87</td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" colspan=\"2\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td colspan=\"2\" style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">$3.46-$3.93</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"vertical-align:bottom;text-align:right;\">104</td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"vertical-align:bottom;text-align:right;\">2.17</td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"vertical-align:bottom;text-align:right;\">3.84</td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"vertical-align:bottom;text-align:right;\">104</td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"vertical-align:bottom;text-align:right;\">2.17</td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"vertical-align:bottom;text-align:right;\">3.84</td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" colspan=\"2\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td colspan=\"2\" style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">$9.45-$19.85</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"vertical-align:bottom;text-align:right;\">97</td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"vertical-align:bottom;text-align:right;\">6.80</td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"vertical-align:bottom;text-align:right;\">10.57</td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"vertical-align:bottom;text-align:right;\">4</td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"vertical-align:bottom;text-align:right;\">6.64</td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"vertical-align:bottom;text-align:right;\">14.02</td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" colspan=\"2\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" colspan=\"2\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td colspan=\"2\" style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">$1.34-$19.85</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;vertical-align:bottom;text-align:right;\">1,597</td><td style=\"PADDING-BOTTOM: 3px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"vertical-align:bottom;text-align:right;\">4.12</td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"vertical-align:bottom;text-align:right;\">2.70</td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;vertical-align:bottom;text-align:right;\">1,042</td><td style=\"PADDING-BOTTOM: 3px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"vertical-align:bottom;text-align:right;\">3.47</td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"vertical-align:bottom;text-align:right;\">2.22</td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"vertical-align:bottom;text-align:right;\">6,440</td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr></tbody></table><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">The total intrinsic values of options exercised were $12,542,000, $152,000 and $160,000 during fiscal 2022, 2021 and 2020, respectively. The weighted average contractual life of the options exercisable and expected to be exercisable at May 31, 2022 was 4.12 years.</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">Options to purchase 1,042,000, 2,045,000 and 2,203,000 shares were exercisable at May 31, 2022, 2021 and 2022, respectively. These exercisable options had weighted average exercise prices of $2.22, $2.26 and $2.25 as of May 31, 2022, 2021 and 2020, respectively.</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">During the fiscal year ended May 31, 2022, RSUs for 209,000 shares were granted to employees.The weighted average market value on the date of the grant of these RSUs was $2.89 per share. During the fiscal year ended May 31, 2022, 158,000 RSUs became fully vested, 40,000 RSUs were withheld to settle payroll taxes, and 10,000 RSUs were cancelled. 185,000 RSUs were outstanding and unvested at May 31, 2022. The intrinsic value of the outstanding and unvested RSUs at May 31, 2022 was $1,554,000. During the fiscal year ended May 31, 2021, RSUs for 170,000 shares, net of 9,000 shares withheld to settle payroll taxes, were granted to employees. The weighted average market value on the date of the grant of these RSUs was $1.92 per share. During the fiscal year ended May 31, 2021, 37,000 RSUs became fully vested and 1,000 RSUs were cancelled. 132,000 RSUs were outstanding and unvested at May 31, 2021. The intrinsic value of the outstanding and unvested RSUs at May 31, 2021 was $297,000. During the fiscal year ended May 31, 2020, RSUs for 10,000 shares, net of 6,000 shares withheld to settle payroll taxes, were granted and fully vested to employees. The market value on the date of the grant of these RSUs was $1.64 per share. During the fiscal year ended May 31, 2020, 13,000 RSUs became fully vested and there was no cancellation. 10,000 RSUs were outstanding and unvested at May 31, 2020. The intrinsic value of the outstanding and unvested RSUs at May 31, 2020 was $16,000.</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">Early in fiscal 2022, the Board of Directors approved the granting of performance-based RSUs to key officers based upon revenue thresholds for the year ended May 31, 2022. The total maximum amount of RSUs to be vested if all revenue goals are achieved will be approximately 270,000 at the weighted average of $3.41 per share. As of May 31, 2022, all of the revenue goals had been achieved and thus RSUs were fully vested but not issued. For the year ended May 31, 2022, the Company recognized approximately $921,000 in stock-based compensation expense for these performance RSUs.</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">During the fiscal year ended May 31, 2022, RSUs for 43,000 shares were granted to members of the Company\u2019s Board of Directors. The weighted average market value on the date of the grant of these RSUs was $8.02 per share. During the fiscal year ended May 31, 2021, RSUs for 161,000 shares were granted and fully vested to members of the Company\u2019s Board of Directors. The weighted average market value on the date of the grant of these RSUs was $1.81 per share. During the fiscal year ended May 31, 2020, RSUs for 9,000 shares were granted and fully vested to members of the Company\u2019s Board of Directors. The weighted average market value on the date of the grant of these RSUs was $1.64 per share.</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">EMPLOYEE STOCK PURCHASE PLAN:</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">In October 2006, the Company\u2019s shareholders approved the 2006 Employee Stock Purchase Plan. In October 2016, the Company\u2019s shareholders approved the Company\u2019s Amended and Restated 2006 Employee Stock Purchase Plan (the \u201cPurchase Plan\u201d), which amended and restated the 2006 Employee Stock Purchase Plan. The Purchase Plan extended the term of the 2006 Employee Stock Purchase Plan indefinitely. See the Company\u2019s Registration Statements on Form S-8 filed with the Securities and Exchange Commission on November 14, 2016 and November 21, 2018 for further information regarding the Purchase Plan. The Purchase Plan has consecutive, overlapping, twenty-four month offering periods. Each twenty-four-month offering period includes four six-month purchase periods. The offering periods generally begin on the first trading day on or after April 1 and October 1 each year. All employees who work a minimum of 20 hours per week and are customarily employed by the Company (or an affiliate thereof) for at least five months per calendar year are eligible to participate. Under the Purchase Plan, shares are purchased through employee payroll deductions at exercise prices equal to 85% of the lesser of the fair market value of the Company\u2019s common stock at either the first day of an offering period or the last day of the purchase period. If a participant\u2019s rights to purchase stock under all employee stock purchase plans of the Company accrue at a rate which exceeds $25,000 worth of stock for a calendar year, such participant may not be granted an option to purchase stock under the Purchase Plan. The maximum number of shares a participant may purchase during a single purchase period is 3,000 shares. In October 2020, the Company\u2019s shareholders approved an amendment to the Purchase Plan to increase the number of shares authorized for issuance thereunder by an additional 350,000 shares of the Company\u2019s common stock. After such amendment, a total of 2,200,000 shares of the Company\u2019s common stock have been authorized for issuance under the Purchase Plan. During the fiscal years ended May 31, 2022, 2021 and 2020, ESPP purchase rights of 101,000, 279,000, and 55,000 shares, respectively, were granted. For the fiscal years ended May 31, 2022, 2021 and 2020, approximately 178,000, 147,000 and 136,000 shares of common stock, respectively, were issued under the Purchase Plan. As of May 31, 2022, a total of 1,942,000 shares have been issued under the Purchase Plan, and 258,000 ESPP shares remain available for issuance.</p>"}]},{"name":"rpt:f-801","factDimensions":{"xbrl:concept":"us-gaap:ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTextBlock","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470"},"factValues":[{"value":"<p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px 0px 0px 45px; text-align:justify;\">The following table summarizes the stock-based compensation expense for the fiscal years ended May 31, 2022, 2021 and 2020 (in thousands, except per share data):</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><table cellpadding=\"0\" style=\"border-spacing:0;text-align:left;font:10pt times new roman;width:100%\"><tbody><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"10\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Year Ended May 31,</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2022</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2021</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2020</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Stock-based compensation in the form of stock options, RSUs, and ESPP purchase rights, included in:</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" colspan=\"2\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" colspan=\"2\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" colspan=\"2\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" colspan=\"2\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" colspan=\"2\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" colspan=\"2\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Cost of sales</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">234</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">70</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">80</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Selling, general and administrative</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">1,721</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">816</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">631</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Research and development</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">968</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">215</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">199</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Net effect on net income (loss)</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">2,923</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">1,101</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">910</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Effect on net income (loss) per share:</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px 0px 0px 15px\">Basic</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">0.11</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">0.05</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">0.04</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px 0px 0px 15px\">Diluted</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">0.11</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">0.05</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">0.04</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr></tbody></table>"}]},{"name":"rpt:f-802","factDimensions":{"xbrl:concept":"us-gaap:AllocatedShareBasedCompensationExpense","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD","us-gaap:IncomeStatementLocationAxis":"us-gaap:CostOfSalesMember"},"factValues":[{"value":"234000","decimals":-3}]},{"name":"rpt:f-803","factDimensions":{"xbrl:concept":"us-gaap:AllocatedShareBasedCompensationExpense","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD","us-gaap:IncomeStatementLocationAxis":"us-gaap:CostOfSalesMember"},"factValues":[{"value":"70000","decimals":-3}]},{"name":"rpt:f-804","factDimensions":{"xbrl:concept":"us-gaap:AllocatedShareBasedCompensationExpense","xbrl:period":"2019-06-01T00:00:00/2020-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD","us-gaap:IncomeStatementLocationAxis":"us-gaap:CostOfSalesMember"},"factValues":[{"value":"80000","decimals":-3}]},{"name":"rpt:f-805","factDimensions":{"xbrl:concept":"us-gaap:AllocatedShareBasedCompensationExpense","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD","us-gaap:IncomeStatementLocationAxis":"us-gaap:GeneralAndAdministrativeExpenseMember"},"factValues":[{"value":"1721000","decimals":-3}]},{"name":"rpt:f-806","factDimensions":{"xbrl:concept":"us-gaap:AllocatedShareBasedCompensationExpense","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD","us-gaap:IncomeStatementLocationAxis":"us-gaap:GeneralAndAdministrativeExpenseMember"},"factValues":[{"value":"816000","decimals":-3}]},{"name":"rpt:f-807","factDimensions":{"xbrl:concept":"us-gaap:AllocatedShareBasedCompensationExpense","xbrl:period":"2019-06-01T00:00:00/2020-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD","us-gaap:IncomeStatementLocationAxis":"us-gaap:GeneralAndAdministrativeExpenseMember"},"factValues":[{"value":"631000","decimals":-3}]},{"name":"rpt:f-808","factDimensions":{"xbrl:concept":"us-gaap:AllocatedShareBasedCompensationExpense","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD","us-gaap:IncomeStatementLocationAxis":"us-gaap:ResearchAndDevelopmentExpenseMember"},"factValues":[{"value":"968000","decimals":-3}]},{"name":"rpt:f-809","factDimensions":{"xbrl:concept":"us-gaap:AllocatedShareBasedCompensationExpense","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD","us-gaap:IncomeStatementLocationAxis":"us-gaap:ResearchAndDevelopmentExpenseMember"},"factValues":[{"value":"215000","decimals":-3}]},{"name":"rpt:f-810","factDimensions":{"xbrl:concept":"us-gaap:AllocatedShareBasedCompensationExpense","xbrl:period":"2019-06-01T00:00:00/2020-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD","us-gaap:IncomeStatementLocationAxis":"us-gaap:ResearchAndDevelopmentExpenseMember"},"factValues":[{"value":"199000","decimals":-3}]},{"name":"rpt:f-811","factDimensions":{"xbrl:concept":"aehr:TotalStockBasedCompensation","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"2923000","decimals":-3}]},{"name":"rpt:f-812","factDimensions":{"xbrl:concept":"aehr:TotalStockBasedCompensation","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"1101000","decimals":-3}]},{"name":"rpt:f-813","factDimensions":{"xbrl:concept":"aehr:TotalStockBasedCompensation","xbrl:period":"2019-06-01T00:00:00/2020-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"910000","decimals":-3}]},{"name":"rpt:f-814","factDimensions":{"xbrl:concept":"aehr:EffectOnNetIncomeLossPerShareBasic","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD/xbrla:shares"},"factValues":[{"value":"0.11"}]},{"name":"rpt:f-815","factDimensions":{"xbrl:concept":"aehr:EffectOnNetIncomeLossPerShareBasic","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD/xbrla:shares"},"factValues":[{"value":"0.05"}]},{"name":"rpt:f-816","factDimensions":{"xbrl:concept":"aehr:EffectOnNetIncomeLossPerShareBasic","xbrl:period":"2019-06-01T00:00:00/2020-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD/xbrla:shares"},"factValues":[{"value":"0.04"}]},{"name":"rpt:f-817","factDimensions":{"xbrl:concept":"aehr:EffectOnNetIncomeLossPerShareDiluted","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD/xbrla:shares"},"factValues":[{"value":"0.11"}]},{"name":"rpt:f-818","factDimensions":{"xbrl:concept":"aehr:EffectOnNetIncomeLossPerShareDiluted","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD/xbrla:shares"},"factValues":[{"value":"0.05"}]},{"name":"rpt:f-819","factDimensions":{"xbrl:concept":"aehr:EffectOnNetIncomeLossPerShareDiluted","xbrl:period":"2019-06-01T00:00:00/2020-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD/xbrla:shares"},"factValues":[{"value":"0.04"}]},{"name":"rpt:f-820","factDimensions":{"xbrl:concept":"us-gaap:DividendsSharebasedCompensationStock","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"83000","decimals":0}]},{"name":"rpt:f-821","factDimensions":{"xbrl:concept":"aehr:StockbasedCompensationExpenseRelatedToStockOptionsAndRestrictedStockUnits","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD","us-gaap:AwardTypeAxis":"aehr:StockOptionAndRSUMember"},"factValues":[{"value":"2071000","decimals":0}]},{"name":"rpt:f-822","factDimensions":{"xbrl:concept":"aehr:StockbasedCompensationExpenseRelatedToStockOptionsAndRestrictedStockUnits","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD","us-gaap:AwardTypeAxis":"aehr:StockOptionAndRSUMember"},"factValues":[{"value":"993000","decimals":0}]},{"name":"rpt:f-823","factDimensions":{"xbrl:concept":"us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized","xbrl:period":"2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD","us-gaap:AwardTypeAxis":"aehr:EquityIncentivePlan2016Member"},"factValues":[{"value":"1905000","decimals":0}]},{"name":"rpt:f-824","factDimensions":{"xbrl:concept":"aehr:EstimatedForfeituresOfUnvestedStockBasedAwards","xbrl:period":"2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD","us-gaap:AwardTypeAxis":"aehr:EquityIncentivePlan2016Member"},"factValues":[{"value":"5000","decimals":0}]},{"name":"rpt:f-825","factDimensions":{"xbrl:concept":"aehr:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationsCostNotYetRecognizedPeriodForRecognition1","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","us-gaap:AwardTypeAxis":"aehr:EquityIncentivePlan2016Member"},"factValues":[{"value":"P1Y3M18D"}]},{"name":"rpt:f-826","factDimensions":{"xbrl:concept":"aehr:StockbasedCompensationRelatedToEmployeeStockPurchasePlan","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD","us-gaap:EmployeeStockOwnershipPlanESOPDisclosuresByPlanAxis":"us-gaap:EmployeeStockMember"},"factValues":[{"value":"935000","decimals":0}]},{"name":"rpt:f-827","factDimensions":{"xbrl:concept":"aehr:StockbasedCompensationRelatedToEmployeeStockPurchasePlan","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD","us-gaap:EmployeeStockOwnershipPlanESOPDisclosuresByPlanAxis":"us-gaap:EmployeeStockMember"},"factValues":[{"value":"108000","decimals":0}]},{"name":"rpt:f-828","factDimensions":{"xbrl:concept":"us-gaap:InterestExpenseFederalFundsPurchased","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD","us-gaap:EmployeeStockOwnershipPlanESOPDisclosuresByPlanAxis":"us-gaap:EmployeeStockMember"},"factValues":[{"value":"417000","decimals":0}]},{"name":"rpt:f-829","factDimensions":{"xbrl:concept":"aehr:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriosdForRecognition1","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","us-gaap:EmployeeStockOwnershipPlanESOPDisclosuresByPlanAxis":"us-gaap:EmployeeStockMember"},"factValues":[{"value":"P0Y9M18D"}]},{"name":"rpt:f-830","factDimensions":{"xbrl:concept":"us-gaap:ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470"},"factValues":[{"value":"<p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">Fair Value. The fair values of the Company\u2019s stock options granted to employees in fiscal 2022, 2021 and 2020 were estimated using the following weighted average assumptions in the Black-Scholes option valuation method:</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><table cellpadding=\"0\" style=\"border-spacing:0;text-align:left;font:10pt times new roman;width:100%\"><tbody><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"10\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Year Ended May 31,</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2022</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2021</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2020</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" colspan=\"2\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" colspan=\"2\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" colspan=\"2\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Expected term (in years) \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td colspan=\"2\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:right;\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a05 - 6</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">6</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">5</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Volatility\u00a0 \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">88.0</td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">%</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">72.0</td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">%</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">71.5</td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">%</td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Risk-free interest rates \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">1.50</td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">%</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">0.44</td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">%</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">1.56</td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">%</td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Weighted average grant date fair value \u00a0\u00a0\u00a0\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">4.01</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">1.12</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">0.95</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr></tbody></table>"}]},{"name":"rpt:f-831","factDimensions":{"xbrl:concept":"us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","srt:RangeAxis":"srt:MinimumMember","us-gaap:AwardTypeAxis":"us-gaap:StockOptionMember"},"factValues":[{"value":"P5Y"}]},{"name":"rpt:f-832","factDimensions":{"xbrl:concept":"us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","srt:RangeAxis":"srt:MaximumMember","us-gaap:AwardTypeAxis":"us-gaap:StockOptionMember"},"factValues":[{"value":"P6Y"}]},{"name":"rpt:f-833","factDimensions":{"xbrl:concept":"us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","us-gaap:AwardTypeAxis":"us-gaap:StockOptionMember"},"factValues":[{"value":"P6Y"}]},{"name":"rpt:f-834","factDimensions":{"xbrl:concept":"us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1","xbrl:period":"2019-06-01T00:00:00/2020-06-01T00:00:00","xbrl:entity":"cik:0001040470","us-gaap:AwardTypeAxis":"us-gaap:StockOptionMember"},"factValues":[{"value":"P5Y"}]},{"name":"rpt:f-835","factDimensions":{"xbrl:concept":"us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","us-gaap:AwardTypeAxis":"us-gaap:StockOptionMember"},"factValues":[{"value":"0.880"}]},{"name":"rpt:f-836","factDimensions":{"xbrl:concept":"us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","us-gaap:AwardTypeAxis":"us-gaap:StockOptionMember"},"factValues":[{"value":"0.720"}]},{"name":"rpt:f-837","factDimensions":{"xbrl:concept":"us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate","xbrl:period":"2019-06-01T00:00:00/2020-06-01T00:00:00","xbrl:entity":"cik:0001040470","us-gaap:AwardTypeAxis":"us-gaap:StockOptionMember"},"factValues":[{"value":"0.715"}]},{"name":"rpt:f-838","factDimensions":{"xbrl:concept":"us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","us-gaap:AwardTypeAxis":"us-gaap:StockOptionMember"},"factValues":[{"value":"0.0150"}]},{"name":"rpt:f-839","factDimensions":{"xbrl:concept":"us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","us-gaap:AwardTypeAxis":"us-gaap:StockOptionMember"},"factValues":[{"value":"0.0044"}]},{"name":"rpt:f-840","factDimensions":{"xbrl:concept":"us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate","xbrl:period":"2019-06-01T00:00:00/2020-06-01T00:00:00","xbrl:entity":"cik:0001040470","us-gaap:AwardTypeAxis":"us-gaap:StockOptionMember"},"factValues":[{"value":"0.0156"}]},{"name":"rpt:f-841","factDimensions":{"xbrl:concept":"us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD/xbrla:shares","us-gaap:AwardTypeAxis":"us-gaap:StockOptionMember"},"factValues":[{"value":"4.01"}]},{"name":"rpt:f-842","factDimensions":{"xbrl:concept":"us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD/xbrla:shares","us-gaap:AwardTypeAxis":"us-gaap:StockOptionMember"},"factValues":[{"value":"1.12"}]},{"name":"rpt:f-843","factDimensions":{"xbrl:concept":"us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue","xbrl:period":"2019-06-01T00:00:00/2020-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD/xbrla:shares","us-gaap:AwardTypeAxis":"us-gaap:StockOptionMember"},"factValues":[{"value":"0.95"}]},{"name":"rpt:f-844","factDimensions":{"xbrl:concept":"us-gaap:ScheduleOfShareBasedPaymentAwardEmployeeStockPurchasePlanValuationAssumptionsTableTextBlock","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470"},"factValues":[{"value":"<p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">The fair value of our ESPP purchase rights for the fiscal 2022, 2021 and 2020 was estimated using the following weighted average assumptions:</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><table cellpadding=\"0\" style=\"border-spacing:0;text-align:left;font:10pt times new roman;width:100%\"><tbody><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"10\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Year End May 31, </p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2022</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2021</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2020</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:bottom;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Expected term (in years) \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:right;\">0.5 \u2013 2.0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:right;\">0.5 \u2013 2.0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:right;\">0.5 \u2013 2.0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:bottom;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Volatility \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:right;\">101% \u2013 272</p></td><td style=\"vertical-align:bottom;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">%</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:right;\">74% \u2013 88</p></td><td style=\"vertical-align:bottom;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">%\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:right;\">62% \u2013 77</p></td><td style=\"vertical-align:bottom;white-space: nowrap;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:right;\">%\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:bottom;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Risk-free interest rates \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:right;\">0.05%\u20132.44</p></td><td style=\"vertical-align:bottom;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">%</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:right;\">0.04%\u20130.17</p></td><td style=\"vertical-align:bottom;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">%</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:right;\">0.14%\u20131.81</p></td><td style=\"vertical-align:bottom;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">%</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Weighted average grant date fair value \u00a0\u00a0\u00a0\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">9.68</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">1.03</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">0.79</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr></tbody></table>"}]},{"name":"rpt:f-845","factDimensions":{"xbrl:concept":"us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","us-gaap:EmployeeStockOwnershipPlanESOPDisclosuresByPlanAxis":"us-gaap:EmployeeStockMember","srt:RangeAxis":"srt:MinimumMember"},"factValues":[{"value":"P0Y6M"}]},{"name":"rpt:f-846","factDimensions":{"xbrl:concept":"us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","us-gaap:EmployeeStockOwnershipPlanESOPDisclosuresByPlanAxis":"us-gaap:EmployeeStockMember","srt:RangeAxis":"srt:MaximumMember"},"factValues":[{"value":"P2Y"}]},{"name":"rpt:f-847","factDimensions":{"xbrl:concept":"us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","us-gaap:EmployeeStockOwnershipPlanESOPDisclosuresByPlanAxis":"us-gaap:EmployeeStockMember","srt:RangeAxis":"srt:MinimumMember"},"factValues":[{"value":"P0Y6M"}]},{"name":"rpt:f-848","factDimensions":{"xbrl:concept":"us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","us-gaap:EmployeeStockOwnershipPlanESOPDisclosuresByPlanAxis":"us-gaap:EmployeeStockMember","srt:RangeAxis":"srt:MaximumMember"},"factValues":[{"value":"P2Y"}]},{"name":"rpt:f-849","factDimensions":{"xbrl:concept":"us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1","xbrl:period":"2019-06-01T00:00:00/2020-06-01T00:00:00","xbrl:entity":"cik:0001040470","us-gaap:EmployeeStockOwnershipPlanESOPDisclosuresByPlanAxis":"us-gaap:EmployeeStockMember","srt:RangeAxis":"srt:MinimumMember"},"factValues":[{"value":"P0Y6M"}]},{"name":"rpt:f-850","factDimensions":{"xbrl:concept":"us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1","xbrl:period":"2019-06-01T00:00:00/2020-06-01T00:00:00","xbrl:entity":"cik:0001040470","us-gaap:EmployeeStockOwnershipPlanESOPDisclosuresByPlanAxis":"us-gaap:EmployeeStockMember","srt:RangeAxis":"srt:MaximumMember"},"factValues":[{"value":"P2Y"}]},{"name":"rpt:f-851","factDimensions":{"xbrl:concept":"us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","us-gaap:EmployeeStockOwnershipPlanESOPDisclosuresByPlanAxis":"us-gaap:EmployeeStockMember","srt:RangeAxis":"srt:MinimumMember"},"factValues":[{"value":"1.01"}]},{"name":"rpt:f-852","factDimensions":{"xbrl:concept":"us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","us-gaap:EmployeeStockOwnershipPlanESOPDisclosuresByPlanAxis":"us-gaap:EmployeeStockMember","srt:RangeAxis":"srt:MaximumMember"},"factValues":[{"value":"2.72"}]},{"name":"rpt:f-853","factDimensions":{"xbrl:concept":"us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","us-gaap:EmployeeStockOwnershipPlanESOPDisclosuresByPlanAxis":"us-gaap:EmployeeStockMember","srt:RangeAxis":"srt:MinimumMember"},"factValues":[{"value":"0.74"}]},{"name":"rpt:f-854","factDimensions":{"xbrl:concept":"us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","us-gaap:EmployeeStockOwnershipPlanESOPDisclosuresByPlanAxis":"us-gaap:EmployeeStockMember","srt:RangeAxis":"srt:MaximumMember"},"factValues":[{"value":"0.88"}]},{"name":"rpt:f-855","factDimensions":{"xbrl:concept":"us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate","xbrl:period":"2019-06-01T00:00:00/2020-06-01T00:00:00","xbrl:entity":"cik:0001040470","us-gaap:EmployeeStockOwnershipPlanESOPDisclosuresByPlanAxis":"us-gaap:EmployeeStockMember","srt:RangeAxis":"srt:MinimumMember"},"factValues":[{"value":"0.62"}]},{"name":"rpt:f-856","factDimensions":{"xbrl:concept":"us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate","xbrl:period":"2019-06-01T00:00:00/2020-06-01T00:00:00","xbrl:entity":"cik:0001040470","us-gaap:EmployeeStockOwnershipPlanESOPDisclosuresByPlanAxis":"us-gaap:EmployeeStockMember","srt:RangeAxis":"srt:MaximumMember"},"factValues":[{"value":"0.77"}]},{"name":"rpt:f-857","factDimensions":{"xbrl:concept":"us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","us-gaap:EmployeeStockOwnershipPlanESOPDisclosuresByPlanAxis":"us-gaap:EmployeeStockMember","srt:RangeAxis":"srt:MinimumMember"},"factValues":[{"value":"0.0005"}]},{"name":"rpt:f-858","factDimensions":{"xbrl:concept":"us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","us-gaap:EmployeeStockOwnershipPlanESOPDisclosuresByPlanAxis":"us-gaap:EmployeeStockMember","srt:RangeAxis":"srt:MaximumMember"},"factValues":[{"value":"0.0244"}]},{"name":"rpt:f-859","factDimensions":{"xbrl:concept":"us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","us-gaap:EmployeeStockOwnershipPlanESOPDisclosuresByPlanAxis":"us-gaap:EmployeeStockMember","srt:RangeAxis":"srt:MinimumMember"},"factValues":[{"value":"0.0004"}]},{"name":"rpt:f-860","factDimensions":{"xbrl:concept":"us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","us-gaap:EmployeeStockOwnershipPlanESOPDisclosuresByPlanAxis":"us-gaap:EmployeeStockMember","srt:RangeAxis":"srt:MaximumMember"},"factValues":[{"value":"0.0017"}]},{"name":"rpt:f-861","factDimensions":{"xbrl:concept":"us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate","xbrl:period":"2019-06-01T00:00:00/2020-06-01T00:00:00","xbrl:entity":"cik:0001040470","us-gaap:EmployeeStockOwnershipPlanESOPDisclosuresByPlanAxis":"us-gaap:EmployeeStockMember","srt:RangeAxis":"srt:MinimumMember"},"factValues":[{"value":"0.0014"}]},{"name":"rpt:f-862","factDimensions":{"xbrl:concept":"us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate","xbrl:period":"2019-06-01T00:00:00/2020-06-01T00:00:00","xbrl:entity":"cik:0001040470","us-gaap:EmployeeStockOwnershipPlanESOPDisclosuresByPlanAxis":"us-gaap:EmployeeStockMember","srt:RangeAxis":"srt:MaximumMember"},"factValues":[{"value":"0.0181"}]},{"name":"rpt:f-863","factDimensions":{"xbrl:concept":"us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD/xbrla:shares","us-gaap:EmployeeStockOwnershipPlanESOPDisclosuresByPlanAxis":"us-gaap:EmployeeStockMember"},"factValues":[{"value":"9.68"}]},{"name":"rpt:f-864","factDimensions":{"xbrl:concept":"us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD/xbrla:shares","us-gaap:EmployeeStockOwnershipPlanESOPDisclosuresByPlanAxis":"us-gaap:EmployeeStockMember"},"factValues":[{"value":"1.03"}]},{"name":"rpt:f-865","factDimensions":{"xbrl:concept":"us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue","xbrl:period":"2019-06-01T00:00:00/2020-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD/xbrla:shares","us-gaap:EmployeeStockOwnershipPlanESOPDisclosuresByPlanAxis":"us-gaap:EmployeeStockMember"},"factValues":[{"value":"0.79"}]},{"name":"rpt:f-866","factDimensions":{"xbrl:concept":"us-gaap:CommonStockCapitalSharesReservedForFutureIssuance","xbrl:period":"2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"xbrla:shares","us-gaap:AwardTypeAxis":"aehr:EquityIncentivePlan2016Member"},"factValues":[{"value":"4848000","decimals":0}]},{"name":"rpt:f-867","factDimensions":{"xbrl:concept":"us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant","xbrl:period":"2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"xbrla:shares","us-gaap:AwardTypeAxis":"aehr:EquityIncentivePlan2016Member"},"factValues":[{"value":"2248000","decimals":0}]},{"name":"rpt:f-868","factDimensions":{"xbrl:concept":"aehr:ShareAuthorized","xbrl:period":"2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"xbrla:shares","us-gaap:AwardTypeAxis":"aehr:EquityIncentivePlan2016Member"},"factValues":[{"value":"3879000","decimals":0}]},{"name":"rpt:f-869","factDimensions":{"xbrl:concept":"aehr:StockOptionsAndRsusOutstanding","xbrl:period":"2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"xbrla:shares","us-gaap:AwardTypeAxis":"aehr:EquityIncentivePlan2016Member"},"factValues":[{"value":"2052000","decimals":0}]},{"name":"rpt:f-870","factDimensions":{"xbrl:concept":"aehr:ShareAuthorized","xbrl:period":"2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"xbrla:shares","us-gaap:AwardTypeAxis":"aehr:EquityIncentivePlan2016Member"},"factValues":[{"value":"4036000","decimals":0}]},{"name":"rpt:f-871","factDimensions":{"xbrl:concept":"aehr:StockOptionsAndRsusOutstanding","xbrl:period":"2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"xbrla:shares","us-gaap:AwardTypeAxis":"aehr:EquityIncentivePlan2016Member"},"factValues":[{"value":"2898000","decimals":0}]},{"name":"rpt:f-872","factDimensions":{"xbrl:concept":"aehr:ShareAuthorized","xbrl:period":"2020-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"xbrla:shares","us-gaap:AwardTypeAxis":"aehr:EquityIncentivePlan2016Member"},"factValues":[{"value":"4813000","decimals":0}]},{"name":"rpt:f-873","factDimensions":{"xbrl:concept":"aehr:StockOptionsAndRsusOutstanding","xbrl:period":"2020-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"xbrla:shares","us-gaap:AwardTypeAxis":"aehr:EquityIncentivePlan2016Member"},"factValues":[{"value":"3163000","decimals":0}]},{"name":"rpt:f-874","factDimensions":{"xbrl:concept":"us-gaap:ScheduleOfShareBasedCompensationActivityTableTextBlock","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470"},"factValues":[{"value":"<p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">The following tables summarize the Company\u2019s stock option and RSU transactions during fiscal 2022, 2021 and 2020 (in thousands):</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><table cellpadding=\"0\" style=\"border-spacing:0;text-align:left;font:10pt times new roman;width:100%\"><tbody><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"width:9%;vertical-align:bottom;text-align:center;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Available</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Shares</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Balance, May 31, 2019</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">1,147</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px;text-indent:10pt\">Additional shares reserved</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">1,196</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px;text-indent:10pt\">Options granted</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">(738</td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">)</td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px;text-indent:10pt\">RSUs granted</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">(25</td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">)</td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px;text-indent:10pt\">Shares withheld for taxes and not issued</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">6</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px;text-indent:10pt\">Options terminated</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">457</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px;text-indent:10pt\">Options expired</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">(393</td><td style=\"PADDING-BOTTOM: 1px;width:1%;vertical-align:bottom;white-space: nowrap;\">)</td></tr><tr style=\"height:15px;background-color:#cceeff\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Balance, May 31, 2020</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">1,650</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px;text-indent:10pt\">Options granted</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">(297</td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">)</td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px;text-indent:10pt\">RSUs granted</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">(340</td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">)</td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px;text-indent:10pt\">RSUs cancelled</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">1</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px;text-indent:10pt\">Shares withheld for taxes and not issued</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">9</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px;text-indent:10pt\">Options terminated</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">455</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px;text-indent:10pt\">Options expired</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">(341</td><td style=\"PADDING-BOTTOM: 1px;width:1%;vertical-align:bottom;white-space: nowrap;\">)</td></tr><tr style=\"height:15px;background-color:#ffffff\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Balance, May 31, 2021</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">1,137</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px;text-indent:10pt\">Additional shares reserved</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">1,414</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px;text-indent:10pt\">Options granted</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">(303</td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">)</td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px;text-indent:10pt\">RSUs granted</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">(522</td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">)</td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px;text-indent:10pt\">RSUs cancelled</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">10</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px;text-indent:10pt\">Shares withheld for taxes and not issued</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">(15</td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">)</td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px;text-indent:10pt\">Options terminated</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">105</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Balance, May 31, 2022</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">1,826</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr></tbody></table>"}]},{"name":"rpt:f-875","factDimensions":{"xbrl:concept":"us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant","xbrl:period":"2019-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"xbrla:shares","us-gaap:AwardTypeAxis":"aehr:StockOptionAndRSUTransactionsMember"},"factValues":[{"value":"1147","decimals":0}]},{"name":"rpt:f-876","factDimensions":{"xbrl:concept":"us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized","xbrl:period":"2019-06-01T00:00:00/2020-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"xbrla:shares","us-gaap:AwardTypeAxis":"aehr:StockOptionAndRSUTransactionsMember"},"factValues":[{"value":"1196","decimals":0}]},{"name":"rpt:f-877","factDimensions":{"xbrl:concept":"us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross","xbrl:period":"2019-06-01T00:00:00/2020-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"xbrla:shares","us-gaap:AwardTypeAxis":"aehr:StockOptionAndRSUTransactionsMember"},"factValues":[{"value":"738","decimals":0}]},{"name":"rpt:f-878","factDimensions":{"xbrl:concept":"us-gaap:StockIssuedDuringPeriodSharesRestrictedStockAwardGross","xbrl:period":"2019-06-01T00:00:00/2020-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"xbrla:shares","us-gaap:AwardTypeAxis":"aehr:StockOptionAndRSUTransactionsMember"},"factValues":[{"value":"25","decimals":0}]},{"name":"rpt:f-879","factDimensions":{"xbrl:concept":"us-gaap:SharesPaidForTaxWithholdingForShareBasedCompensation","xbrl:period":"2019-06-01T00:00:00/2020-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"xbrla:shares","us-gaap:AwardTypeAxis":"aehr:StockOptionAndRSUTransactionsMember"},"factValues":[{"value":"6","decimals":0}]},{"name":"rpt:f-880","factDimensions":{"xbrl:concept":"us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod","xbrl:period":"2019-06-01T00:00:00/2020-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"xbrla:shares","us-gaap:AwardTypeAxis":"aehr:StockOptionAndRSUTransactionsMember"},"factValues":[{"value":"457","decimals":0}]},{"name":"rpt:f-881","factDimensions":{"xbrl:concept":"us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod","xbrl:period":"2019-06-01T00:00:00/2020-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"xbrla:shares","us-gaap:AwardTypeAxis":"aehr:StockOptionAndRSUTransactionsMember"},"factValues":[{"value":"393","decimals":0}]},{"name":"rpt:f-882","factDimensions":{"xbrl:concept":"us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant","xbrl:period":"2020-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"xbrla:shares","us-gaap:AwardTypeAxis":"aehr:StockOptionAndRSUTransactionsMember"},"factValues":[{"value":"1650","decimals":0}]},{"name":"rpt:f-883","factDimensions":{"xbrl:concept":"us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"xbrla:shares","us-gaap:AwardTypeAxis":"aehr:StockOptionAndRSUTransactionsMember"},"factValues":[{"value":"297","decimals":0}]},{"name":"rpt:f-884","factDimensions":{"xbrl:concept":"us-gaap:StockIssuedDuringPeriodSharesRestrictedStockAwardGross","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"xbrla:shares","us-gaap:AwardTypeAxis":"aehr:StockOptionAndRSUTransactionsMember"},"factValues":[{"value":"340","decimals":0}]},{"name":"rpt:f-885","factDimensions":{"xbrl:concept":"us-gaap:StockIssuedDuringPeriodSharesRestrictedStockAwardForfeited","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"xbrla:shares","us-gaap:AwardTypeAxis":"aehr:StockOptionAndRSUTransactionsMember"},"factValues":[{"value":"1","decimals":0}]},{"name":"rpt:f-886","factDimensions":{"xbrl:concept":"us-gaap:SharesPaidForTaxWithholdingForShareBasedCompensation","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"xbrla:shares","us-gaap:AwardTypeAxis":"aehr:StockOptionAndRSUTransactionsMember"},"factValues":[{"value":"9","decimals":0}]},{"name":"rpt:f-887","factDimensions":{"xbrl:concept":"us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"xbrla:shares","us-gaap:AwardTypeAxis":"aehr:StockOptionAndRSUTransactionsMember"},"factValues":[{"value":"455","decimals":0}]},{"name":"rpt:f-888","factDimensions":{"xbrl:concept":"us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"xbrla:shares","us-gaap:AwardTypeAxis":"aehr:StockOptionAndRSUTransactionsMember"},"factValues":[{"value":"341","decimals":0}]},{"name":"rpt:f-889","factDimensions":{"xbrl:concept":"us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant","xbrl:period":"2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"xbrla:shares","us-gaap:AwardTypeAxis":"aehr:StockOptionAndRSUTransactionsMember"},"factValues":[{"value":"1137","decimals":0}]},{"name":"rpt:f-890","factDimensions":{"xbrl:concept":"us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"xbrla:shares","us-gaap:AwardTypeAxis":"aehr:StockOptionAndRSUTransactionsMember"},"factValues":[{"value":"303","decimals":0}]},{"name":"rpt:f-891","factDimensions":{"xbrl:concept":"us-gaap:StockIssuedDuringPeriodSharesRestrictedStockAwardGross","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"xbrla:shares","us-gaap:AwardTypeAxis":"aehr:StockOptionAndRSUTransactionsMember"},"factValues":[{"value":"522","decimals":0}]},{"name":"rpt:f-892","factDimensions":{"xbrl:concept":"us-gaap:StockIssuedDuringPeriodSharesRestrictedStockAwardForfeited","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"xbrla:shares","us-gaap:AwardTypeAxis":"aehr:StockOptionAndRSUTransactionsMember"},"factValues":[{"value":"10","decimals":0}]},{"name":"rpt:f-893","factDimensions":{"xbrl:concept":"us-gaap:SharesPaidForTaxWithholdingForShareBasedCompensation","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"xbrla:shares","us-gaap:AwardTypeAxis":"aehr:StockOptionAndRSUTransactionsMember"},"factValues":[{"value":"-15","decimals":0}]},{"name":"rpt:f-894","factDimensions":{"xbrl:concept":"us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"xbrla:shares","us-gaap:AwardTypeAxis":"aehr:StockOptionAndRSUTransactionsMember"},"factValues":[{"value":"105","decimals":0}]},{"name":"rpt:f-895","factDimensions":{"xbrl:concept":"us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant","xbrl:period":"2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"xbrla:shares","us-gaap:AwardTypeAxis":"aehr:StockOptionAndRSUTransactionsMember"},"factValues":[{"value":"1826","decimals":0}]},{"name":"rpt:f-896","factDimensions":{"xbrl:concept":"us-gaap:ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470"},"factValues":[{"value":"<p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">The following table summarized the stock option transactions during fiscal 2022, 2021 and 2020 (in thousands, except per share data):</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><table cellpadding=\"0\" style=\"border-spacing:0;text-align:left;font:10pt times new roman;width:100%\"><tbody><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"10\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Outstanding Options</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Weighted</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Number</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Average</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Aggregate</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">of</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Exercise</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Intrinsic</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Shares</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Price</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Value</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Balances, May 31, 2019</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">3,107</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">2.20</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">283</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px;text-indent:10pt\">Options granted</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">738</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">1.61</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px;text-indent:10pt\">Options terminated</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">(457</td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">)</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">1.98</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px;text-indent:10pt\">Options exercised</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">(235</td><td style=\"PADDING-BOTTOM: 1px;width:1%;vertical-align:bottom;white-space: nowrap;\">)</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">1.22</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Balances, May 31, 2020</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">3,153</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">2.17</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">102</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px;text-indent:10pt\">Options granted</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">297</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">1.78</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px;text-indent:10pt\">Options terminated</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">(455</td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">)</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">2.31</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px;text-indent:10pt\">Options exercised</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">(229</td><td style=\"PADDING-BOTTOM: 1px;width:1%;vertical-align:bottom;white-space: nowrap;\">)</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">1.54</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Balances, May 31, 2021</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">2,766</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">2.16</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">807</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px;text-indent:10pt\">Options granted</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">303</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">5.37</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px;text-indent:10pt\">Options terminated</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">(105</td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">)</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">1.59</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px;text-indent:10pt\">Options exercised</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">(1,367</td><td style=\"PADDING-BOTTOM: 1px;width:1%;vertical-align:bottom;white-space: nowrap;\">)</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">2.28</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Balances, May 31, 2022</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">1,597</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">2.70</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">9,290</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Options fully vested and expected to vest at May 31, 2022</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">1,570</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">2.69</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">9,138</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr></tbody></table>"}]},{"name":"rpt:f-897","factDimensions":{"xbrl:concept":"us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber","xbrl:period":"2019-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"xbrla:shares","us-gaap:AwardTypeAxis":"aehr:OutstandingOptionsStockOptionTransactionsMember"},"factValues":[{"value":"3107","decimals":0}]},{"name":"rpt:f-898","factDimensions":{"xbrl:concept":"us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice","xbrl:period":"2019-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD/xbrla:shares","us-gaap:AwardTypeAxis":"aehr:OutstandingOptionsStockOptionTransactionsMember"},"factValues":[{"value":"2.20"}]},{"name":"rpt:f-899","factDimensions":{"xbrl:concept":"us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue","xbrl:period":"2019-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD","us-gaap:AwardTypeAxis":"aehr:OutstandingOptionsStockOptionTransactionsMember"},"factValues":[{"value":"283000","decimals":-3}]},{"name":"rpt:f-900","factDimensions":{"xbrl:concept":"us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross","xbrl:period":"2019-06-01T00:00:00/2020-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"xbrla:shares","us-gaap:AwardTypeAxis":"aehr:OutstandingOptionsStockOptionTransactionsMember"},"factValues":[{"value":"738","decimals":0}]},{"name":"rpt:f-901","factDimensions":{"xbrl:concept":"us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice","xbrl:period":"2019-06-01T00:00:00/2020-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD/xbrla:shares","us-gaap:AwardTypeAxis":"aehr:OutstandingOptionsStockOptionTransactionsMember"},"factValues":[{"value":"1.61"}]},{"name":"rpt:f-902","factDimensions":{"xbrl:concept":"us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod","xbrl:period":"2019-06-01T00:00:00/2020-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"xbrla:shares","us-gaap:AwardTypeAxis":"aehr:OutstandingOptionsStockOptionTransactionsMember"},"factValues":[{"value":"457","decimals":0}]},{"name":"rpt:f-903","factDimensions":{"xbrl:concept":"us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice","xbrl:period":"2019-06-01T00:00:00/2020-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD/xbrla:shares","us-gaap:AwardTypeAxis":"aehr:OutstandingOptionsStockOptionTransactionsMember"},"factValues":[{"value":"1.98"}]},{"name":"rpt:f-904","factDimensions":{"xbrl:concept":"us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised","xbrl:period":"2019-06-01T00:00:00/2020-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"xbrla:shares","us-gaap:AwardTypeAxis":"aehr:OutstandingOptionsStockOptionTransactionsMember"},"factValues":[{"value":"235","decimals":0}]},{"name":"rpt:f-905","factDimensions":{"xbrl:concept":"us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice","xbrl:period":"2019-06-01T00:00:00/2020-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD/xbrla:shares","us-gaap:AwardTypeAxis":"aehr:OutstandingOptionsStockOptionTransactionsMember"},"factValues":[{"value":"1.22"}]},{"name":"rpt:f-906","factDimensions":{"xbrl:concept":"us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber","xbrl:period":"2020-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"xbrla:shares","us-gaap:AwardTypeAxis":"aehr:OutstandingOptionsStockOptionTransactionsMember"},"factValues":[{"value":"3153","decimals":0}]},{"name":"rpt:f-907","factDimensions":{"xbrl:concept":"us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice","xbrl:period":"2020-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD/xbrla:shares","us-gaap:AwardTypeAxis":"aehr:OutstandingOptionsStockOptionTransactionsMember"},"factValues":[{"value":"2.17"}]},{"name":"rpt:f-908","factDimensions":{"xbrl:concept":"us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue","xbrl:period":"2020-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD","us-gaap:AwardTypeAxis":"aehr:OutstandingOptionsStockOptionTransactionsMember"},"factValues":[{"value":"102000","decimals":-3}]},{"name":"rpt:f-909","factDimensions":{"xbrl:concept":"us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"xbrla:shares","us-gaap:AwardTypeAxis":"aehr:OutstandingOptionsStockOptionTransactionsMember"},"factValues":[{"value":"297","decimals":0}]},{"name":"rpt:f-910","factDimensions":{"xbrl:concept":"us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD/xbrla:shares","us-gaap:AwardTypeAxis":"aehr:OutstandingOptionsStockOptionTransactionsMember"},"factValues":[{"value":"1.78"}]},{"name":"rpt:f-911","factDimensions":{"xbrl:concept":"us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"xbrla:shares","us-gaap:AwardTypeAxis":"aehr:OutstandingOptionsStockOptionTransactionsMember"},"factValues":[{"value":"455","decimals":0}]},{"name":"rpt:f-912","factDimensions":{"xbrl:concept":"us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD/xbrla:shares","us-gaap:AwardTypeAxis":"aehr:OutstandingOptionsStockOptionTransactionsMember"},"factValues":[{"value":"2.31"}]},{"name":"rpt:f-913","factDimensions":{"xbrl:concept":"us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"xbrla:shares","us-gaap:AwardTypeAxis":"aehr:OutstandingOptionsStockOptionTransactionsMember"},"factValues":[{"value":"229","decimals":0}]},{"name":"rpt:f-914","factDimensions":{"xbrl:concept":"us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD/xbrla:shares","us-gaap:AwardTypeAxis":"aehr:OutstandingOptionsStockOptionTransactionsMember"},"factValues":[{"value":"1.54"}]},{"name":"rpt:f-915","factDimensions":{"xbrl:concept":"us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber","xbrl:period":"2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"xbrla:shares","us-gaap:AwardTypeAxis":"aehr:OutstandingOptionsStockOptionTransactionsMember"},"factValues":[{"value":"2766","decimals":0}]},{"name":"rpt:f-916","factDimensions":{"xbrl:concept":"us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice","xbrl:period":"2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD/xbrla:shares","us-gaap:AwardTypeAxis":"aehr:OutstandingOptionsStockOptionTransactionsMember"},"factValues":[{"value":"2.16"}]},{"name":"rpt:f-917","factDimensions":{"xbrl:concept":"us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue","xbrl:period":"2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD","us-gaap:AwardTypeAxis":"aehr:OutstandingOptionsStockOptionTransactionsMember"},"factValues":[{"value":"807000","decimals":-3}]},{"name":"rpt:f-918","factDimensions":{"xbrl:concept":"us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"xbrla:shares","us-gaap:AwardTypeAxis":"aehr:OutstandingOptionsStockOptionTransactionsMember"},"factValues":[{"value":"303","decimals":0}]},{"name":"rpt:f-919","factDimensions":{"xbrl:concept":"us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD/xbrla:shares","us-gaap:AwardTypeAxis":"aehr:OutstandingOptionsStockOptionTransactionsMember"},"factValues":[{"value":"5.37"}]},{"name":"rpt:f-920","factDimensions":{"xbrl:concept":"us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"xbrla:shares","us-gaap:AwardTypeAxis":"aehr:OutstandingOptionsStockOptionTransactionsMember"},"factValues":[{"value":"105","decimals":0}]},{"name":"rpt:f-921","factDimensions":{"xbrl:concept":"us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD/xbrla:shares","us-gaap:AwardTypeAxis":"aehr:OutstandingOptionsStockOptionTransactionsMember"},"factValues":[{"value":"1.59"}]},{"name":"rpt:f-922","factDimensions":{"xbrl:concept":"us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"xbrla:shares","us-gaap:AwardTypeAxis":"aehr:OutstandingOptionsStockOptionTransactionsMember"},"factValues":[{"value":"1367","decimals":0}]},{"name":"rpt:f-923","factDimensions":{"xbrl:concept":"us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD/xbrla:shares","us-gaap:AwardTypeAxis":"aehr:OutstandingOptionsStockOptionTransactionsMember"},"factValues":[{"value":"2.28"}]},{"name":"rpt:f-924","factDimensions":{"xbrl:concept":"us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber","xbrl:period":"2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"xbrla:shares","us-gaap:AwardTypeAxis":"aehr:OutstandingOptionsStockOptionTransactionsMember"},"factValues":[{"value":"1597","decimals":0}]},{"name":"rpt:f-925","factDimensions":{"xbrl:concept":"us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice","xbrl:period":"2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD/xbrla:shares","us-gaap:AwardTypeAxis":"aehr:OutstandingOptionsStockOptionTransactionsMember"},"factValues":[{"value":"2.70"}]},{"name":"rpt:f-926","factDimensions":{"xbrl:concept":"us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue","xbrl:period":"2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD","us-gaap:AwardTypeAxis":"aehr:OutstandingOptionsStockOptionTransactionsMember"},"factValues":[{"value":"9290000","decimals":-3}]},{"name":"rpt:f-927","factDimensions":{"xbrl:concept":"us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber","xbrl:period":"2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"xbrla:shares","us-gaap:AwardTypeAxis":"aehr:OutstandingOptionsStockOptionTransactionsMember"},"factValues":[{"value":"1570","decimals":0}]},{"name":"rpt:f-928","factDimensions":{"xbrl:concept":"us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice","xbrl:period":"2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD/xbrla:shares","us-gaap:AwardTypeAxis":"aehr:OutstandingOptionsStockOptionTransactionsMember"},"factValues":[{"value":"2.69"}]},{"name":"rpt:f-929","factDimensions":{"xbrl:concept":"us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue","xbrl:period":"2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD","us-gaap:AwardTypeAxis":"aehr:OutstandingOptionsStockOptionTransactionsMember"},"factValues":[{"value":"9138","decimals":0}]},{"name":"rpt:f-930","factDimensions":{"xbrl:concept":"us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAndExercisableTableTextBlock","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470"},"factValues":[{"value":"<p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">The options outstanding and exercisable at May 31, 2022 were in the following exercise price ranges (in thousands, except per share data):</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0 </p><table cellpadding=\"0\" style=\"border-spacing:0;text-align:left;font:10pt times new roman;width:100%\"><tbody><tr style=\"height:15px\"><td colspan=\"2\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"10\" style=\"vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Options Outstanding</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"14\" style=\"vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Options Exercisable</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px\"><td colspan=\"2\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"10\" style=\"BORDER-BOTTOM: 1px solid;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">at May 31, 2022</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"14\" style=\"BORDER-BOTTOM: 1px solid;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">at May 31, 2022</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px\"><td colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;vertical-align:bottom;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Range of Exercise</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Prices</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Number Outstanding Shares</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Weighted Average Remaining Contractual Life (Years)</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Weighted Average Exercise Price</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Number Exercisable Shares</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Weighted Average Remaining Contractual Life (Years)</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Weighted Average Exercise Price</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Aggregate Intrinsic Value</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td>1.34</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">51</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">5.39</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">1.34</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">51</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">5.39</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">1.34</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" colspan=\"2\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td colspan=\"2\" style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">$1.64-$1.86</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"vertical-align:bottom;text-align:right;\">659</td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"vertical-align:bottom;text-align:right;\">4.02</td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"vertical-align:bottom;text-align:right;\">1.70</td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"vertical-align:bottom;text-align:right;\">419</td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"vertical-align:bottom;text-align:right;\">3.71</td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"vertical-align:bottom;text-align:right;\">1.69</td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" colspan=\"2\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td colspan=\"2\" style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">$2.03-$2.42</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"vertical-align:bottom;text-align:right;\">471</td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"vertical-align:bottom;text-align:right;\">3.33</td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"vertical-align:bottom;text-align:right;\">2.25</td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"vertical-align:bottom;text-align:right;\">408</td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"vertical-align:bottom;text-align:right;\">3.21</td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"vertical-align:bottom;text-align:right;\">2.26</td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" colspan=\"2\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td colspan=\"2\" style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">$2.76-$2.93</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"vertical-align:bottom;text-align:right;\">215</td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"vertical-align:bottom;text-align:right;\">5.60</td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"vertical-align:bottom;text-align:right;\">2.91</td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"vertical-align:bottom;text-align:right;\">56</td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"vertical-align:bottom;text-align:right;\">4.12</td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"vertical-align:bottom;text-align:right;\">2.87</td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" colspan=\"2\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td colspan=\"2\" style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">$3.46-$3.93</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"vertical-align:bottom;text-align:right;\">104</td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"vertical-align:bottom;text-align:right;\">2.17</td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"vertical-align:bottom;text-align:right;\">3.84</td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"vertical-align:bottom;text-align:right;\">104</td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"vertical-align:bottom;text-align:right;\">2.17</td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"vertical-align:bottom;text-align:right;\">3.84</td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" colspan=\"2\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td colspan=\"2\" style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">$9.45-$19.85</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"vertical-align:bottom;text-align:right;\">97</td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"vertical-align:bottom;text-align:right;\">6.80</td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"vertical-align:bottom;text-align:right;\">10.57</td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"vertical-align:bottom;text-align:right;\">4</td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"vertical-align:bottom;text-align:right;\">6.64</td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"vertical-align:bottom;text-align:right;\">14.02</td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" colspan=\"2\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" colspan=\"2\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td colspan=\"2\" style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">$1.34-$19.85</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;vertical-align:bottom;text-align:right;\">1,597</td><td style=\"PADDING-BOTTOM: 3px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"vertical-align:bottom;text-align:right;\">4.12</td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"vertical-align:bottom;text-align:right;\">2.70</td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;vertical-align:bottom;text-align:right;\">1,042</td><td style=\"PADDING-BOTTOM: 3px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"vertical-align:bottom;text-align:right;\">3.47</td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"vertical-align:bottom;text-align:right;\">2.22</td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"vertical-align:bottom;text-align:right;\">6,440</td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr></tbody></table>"}]},{"name":"rpt:f-931","factDimensions":{"xbrl:concept":"us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber","xbrl:period":"2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"xbrla:shares","us-gaap:ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis":"aehr:Range1Member"},"factValues":[{"value":"51000","decimals":-3}]},{"name":"rpt:f-932","factDimensions":{"xbrl:concept":"us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","us-gaap:ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis":"aehr:Range1Member"},"factValues":[{"value":"P5Y4M20D"}]},{"name":"rpt:f-933","factDimensions":{"xbrl:concept":"us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice","xbrl:period":"2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD/xbrla:shares","us-gaap:ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis":"aehr:Range1Member"},"factValues":[{"value":"1.34"}]},{"name":"rpt:f-934","factDimensions":{"xbrl:concept":"us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber","xbrl:period":"2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"xbrla:shares","us-gaap:ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis":"aehr:Range1Member"},"factValues":[{"value":"51000","decimals":-3}]},{"name":"rpt:f-935","factDimensions":{"xbrl:concept":"aehr:SharebasedCompensationArrangementBySharebasedPaymentOptionsExercisableWeightedAverageRemainingContractualTerm1","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","us-gaap:ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis":"aehr:Range1Member"},"factValues":[{"value":"P5Y4M20D"}]},{"name":"rpt:f-936","factDimensions":{"xbrl:concept":"us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice","xbrl:period":"2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD/xbrla:shares","us-gaap:ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis":"aehr:Range1Member"},"factValues":[{"value":"1.34"}]},{"name":"rpt:f-937","factDimensions":{"xbrl:concept":"us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber","xbrl:period":"2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"xbrla:shares","us-gaap:ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis":"aehr:Range2Member"},"factValues":[{"value":"659000","decimals":-3}]},{"name":"rpt:f-938","factDimensions":{"xbrl:concept":"us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","us-gaap:ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis":"aehr:Range2Member"},"factValues":[{"value":"P4Y7D"}]},{"name":"rpt:f-939","factDimensions":{"xbrl:concept":"us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice","xbrl:period":"2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD/xbrla:shares","us-gaap:ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis":"aehr:Range2Member"},"factValues":[{"value":"1.70"}]},{"name":"rpt:f-940","factDimensions":{"xbrl:concept":"us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber","xbrl:period":"2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"xbrla:shares","us-gaap:ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis":"aehr:Range2Member"},"factValues":[{"value":"419000","decimals":-3}]},{"name":"rpt:f-941","factDimensions":{"xbrl:concept":"aehr:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingsContractualTerm1","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","us-gaap:ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis":"aehr:Range2Member"},"factValues":[{"value":"P3Y8M15D"}]},{"name":"rpt:f-942","factDimensions":{"xbrl:concept":"us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice","xbrl:period":"2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD/xbrla:shares","us-gaap:ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis":"aehr:Range2Member"},"factValues":[{"valu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style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\"><strong>12. EMPLOYEE BENEFIT PLANS:</strong></p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">EMPLOYEE STOCK OWNERSHIP PLAN:</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">The Company has a non-contributory, trusteed employee stock ownership plan for full-time employees who have completed three consecutive months of service and for part-time employees who have completed one year of service and have attained an age of 21. The Company can contribute either shares of the Company\u2019s stock or cash to the plan. The contribution is determined annually by the Company and cannot exceed 15% of the annual aggregate salaries of those employees eligible for participation in the plan. On May 31, 2007, the Company converted the Aehr Test Systems Employee Stock Bonus Plan into the Aehr Test Systems Employee Stock Ownership Plan (the \u201cPlan\u201d). The stock bonus plan was converted to an employee stock ownership plan (\u201cESOP\u201d) to enable the Plan to better comply with changes in the law regarding Company stock. Individuals\u2019 account balances vest at a rate of 20% per year commencing upon completion of two years of service. Non-vested balances, which are forfeited following termination of employment, are allocated to the remaining employees in the Plan. Under the Plan provisions, each employee who reaches age fifty-five (55) and has been a participant in the Plan for ten years will be offered an election each year to direct the transfer of up to 25% of his/her ESOP account to the employee self-directed account in the Savings and Retirement Plan. For anyone who met the above prerequisites, the first election to diversify holdings was offered after May 31, 2008. In the sixth year, employees will be able to diversify up to 50% of their ESOP accounts. Contributions of $250,000 were authorized for the plan during fiscal 2022 and $60,000 each for fiscal\u00a02021 and 2020. The contribution amounts are recorded as compensation expense, in the period authorized and included in accrued expenses, in the period authorized. Contributions of 26,666 shares were made to the ESOP during fiscal 2022 for fiscal 2021. Contributions of 36,000 shares were made to the ESOP during fiscal 2021 for fiscal 2020. Contributions of 34,000 shares were made to the ESOP during fiscal 2020 for fiscal 2019. The contribution for fiscal 2022 will be made in fiscal 2023. Shares held in the ESOP are included in the EPS calculation.</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">401(K) PLAN:</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">The Company maintains a defined contribution savings plan (the \u201c401(k) Plan\u201d) to provide retirement income to all qualified employees of the Company. The 401(k) Plan is intended to be qualified under Section 401(k) of the Internal Revenue Code of 1986, as amended. The 401(k) Plan is funded by voluntary pre-tax contributions from employees. Contributions are invested, as directed by the participant, in investment funds available under the 401(k) Plan. The Company is not required to make, and did not make, any contributions to the 401(k) Plan during fiscal 2022, 2021 and 2020.</p>"}]},{"name":"rpt:f-1024","factDimensions":{"xbrl:concept":"us-gaap:DescriptionOfDefinedContributionPensionAndOtherPostretirementPlans","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470"},"factValues":[{"value":"The stock bonus plan was converted to an employee stock ownership plan (\u201cESOP\u201d) to enable the Plan to better comply with changes in the law regarding Company stock. Individuals\u2019 account balances vest at a rate of 20% per year commencing upon completion of two years of service."}]},{"name":"rpt:f-1025","factDimensions":{"xbrl:concept":"us-gaap:DefinedContributionPlanEmployerDiscretionaryContributionAmount","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"250000","decimals":0}]},{"name":"rpt:f-1026","factDimensions":{"xbrl:concept":"us-gaap:DefinedContributionPlanEmployerDiscretionaryContributionAmount","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"60000","decimals":0}]},{"name":"rpt:f-1027","factDimensions":{"xbrl:concept":"us-gaap:EmployeeStockOwnershipPlanESOPSharesContributedToESOP","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"xbrla:shares"},"factValues":[{"value":"26666","decimals":0}]},{"name":"rpt:f-1028","factDimensions":{"xbrl:concept":"us-gaap:EmployeeStockOwnershipPlanESOPSharesContributedToESOP","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"xbrla:shares"},"factValues":[{"value":"36000","decimals":0}]},{"name":"rpt:f-1029","factDimensions":{"xbrl:concept":"us-gaap:EmployeeStockOwnershipPlanESOPSharesContributedToESOP","xbrl:period":"2019-06-01T00:00:00/2020-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"xbrla:shares"},"factValues":[{"value":"34000","decimals":0}]},{"name":"rpt:f-1030","factDimensions":{"xbrl:concept":"us-gaap:OtherIncomeAndOtherExpenseDisclosureTextBlock","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470"},"factValues":[{"value":"<p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\"><strong>13. OTHER INCOME\u00a0(EXPENSE), NET:</strong></p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">Other income (expense), net comprises the following (in thousands):</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><table cellpadding=\"0\" style=\"border-spacing:0;text-align:left;font:10pt times new roman;width:100%\"><tbody><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"10\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Year Ended May 31,</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2022</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2021</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2020</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Foreign exchange gain (loss)</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">32</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">(111</td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">)</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">(12</td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">)</td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Other (expense) income, net</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">(2</td><td style=\"PADDING-BOTTOM: 1px;width:1%;vertical-align:bottom;white-space: nowrap;\">)</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">(51</td><td style=\"PADDING-BOTTOM: 1px;width:1%;vertical-align:bottom;white-space: nowrap;\">)</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">1</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">30</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">(162</td><td style=\"PADDING-BOTTOM: 3px;width:1%;vertical-align:bottom;white-space: nowrap;\">)</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">(11</td><td style=\"PADDING-BOTTOM: 3px;width:1%;vertical-align:bottom;white-space: nowrap;\">)</td></tr></tbody></table>"}]},{"name":"rpt:f-1031","factDimensions":{"xbrl:concept":"us-gaap:ScheduleOfOtherNonoperatingIncomeExpenseTableTextBlock","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470"},"factValues":[{"value":"<p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">Other income (expense), net comprises the following (in thousands):</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><table cellpadding=\"0\" style=\"border-spacing:0;text-align:left;font:10pt times new roman;width:100%\"><tbody><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"10\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Year Ended May 31,</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2022</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2021</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2020</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Foreign exchange gain (loss)</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">32</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">(111</td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">)</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">(12</td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">)</td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Other (expense) income, net</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">(2</td><td style=\"PADDING-BOTTOM: 1px;width:1%;vertical-align:bottom;white-space: nowrap;\">)</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">(51</td><td style=\"PADDING-BOTTOM: 1px;width:1%;vertical-align:bottom;white-space: nowrap;\">)</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">1</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">30</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">(162</td><td style=\"PADDING-BOTTOM: 3px;width:1%;vertical-align:bottom;white-space: nowrap;\">)</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">(11</td><td style=\"PADDING-BOTTOM: 3px;width:1%;vertical-align:bottom;white-space: nowrap;\">)</td></tr></tbody></table>"}]},{"name":"rpt:f-1032","factDimensions":{"xbrl:concept":"us-gaap:ForeignCurrencyTransactionGainLossBeforeTax","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"32000","decimals":-3}]},{"name":"rpt:f-1033","factDimensions":{"xbrl:concept":"us-gaap:ForeignCurrencyTransactionGainLossBeforeTax","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"-111000","decimals":-3}]},{"name":"rpt:f-1034","factDimensions":{"xbrl:concept":"us-gaap:ForeignCurrencyTransactionGainLossBeforeTax","xbrl:period":"2019-06-01T00:00:00/2020-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"-12000","decimals":-3}]},{"name":"rpt:f-1035","factDimensions":{"xbrl:concept":"aehr:OtherIncomeExpenseNet","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"2000","decimals":-3}]},{"name":"rpt:f-1036","factDimensions":{"xbrl:concept":"aehr:OtherIncomeExpenseNet","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"51000","decimals":-3}]},{"name":"rpt:f-1037","factDimensions":{"xbrl:concept":"aehr:OtherIncomeExpenseNet","xbrl:period":"2019-06-01T00:00:00/2020-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"-1000","decimals":-3}]},{"name":"rpt:f-1038","factDimensions":{"xbrl:concept":"aehr:OtherExpenseIncome","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"30000","decimals":-3}]},{"name":"rpt:f-1039","factDimensions":{"xbrl:concept":"aehr:OtherExpenseIncome","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"-162000","decimals":-3}]},{"name":"rpt:f-1040","factDimensions":{"xbrl:concept":"aehr:OtherExpenseIncome","xbrl:period":"2019-06-01T00:00:00/2020-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"-11000","decimals":-3}]},{"name":"rpt:f-1041","factDimensions":{"xbrl:concept":"us-gaap:ProductWarrantyDisclosureTextBlock","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470"},"factValues":[{"value":"<p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\"><strong>14. PRODUCT WARRANTIES:</strong></p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">The Company provides for the estimated cost of product warranties at the time revenues are recognized on the products shipped. While the Company engages in extensive product quality programs and processes, including actively monitoring and evaluating the quality of its component suppliers, the Company\u2019s warranty obligation is affected by product failure rates, material usage and service delivery costs incurred in correcting a product failure. Should actual product failure rates, material usage or service delivery costs differ from the Company\u2019s estimates, revisions to the estimated warranty liability would be required.</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">The standard warranty period is one year for systems and ninety days for parts and service.</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">Following is a summary of changes in the Company\u2019s liability for product warranties during the fiscal years ended May 31, 2022 and 2021 (in thousands):</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><table cellpadding=\"0\" style=\"border-spacing:0;text-align:left;font:10pt times new roman;width:100%\"><tbody><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"6\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">May 31,</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2022</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2021</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" colspan=\"2\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" colspan=\"2\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Balance at the beginning of the year</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">494</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">246</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Accruals for warranties issued during the year</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">465</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">390</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Adjustment to previously existing warranty</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">98</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">346</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Consumption of reserves</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: black 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: black 1px solid;width:9%;vertical-align:bottom;text-align:right;\">(647</td><td style=\"PADDING-BOTTOM: 1px;width:1%;vertical-align:bottom;white-space: nowrap;\">)</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: black 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: black 1px solid;width:9%;vertical-align:bottom;text-align:right;\">(488</td><td style=\"PADDING-BOTTOM: 1px;width:1%;vertical-align:bottom;white-space: nowrap;\">)</td></tr><tr style=\"height:15px;background-color:#cceeff\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Balance at the end of the year</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">410</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">494</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr></tbody></table><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">The accrued warranty balance is included in accrued expenses on the consolidated balance sheets.</p>"}]},{"name":"rpt:f-1042","factDimensions":{"xbrl:concept":"us-gaap:ScheduleOfProductWarrantyLiabilityTableTextBlock","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470"},"factValues":[{"value":"<p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">Following is a summary of changes in the Company\u2019s liability for product warranties during the fiscal years ended May 31, 2022 and 2021 (in thousands):</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><table cellpadding=\"0\" style=\"border-spacing:0;text-align:left;font:10pt times new roman;width:100%\"><tbody><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"6\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">May 31,</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2022</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2021</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" colspan=\"2\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" colspan=\"2\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Balance at the beginning of the year</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">494</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">246</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Accruals for warranties issued during the year</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">465</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">390</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Adjustment to previously existing warranty</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">98</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">346</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Consumption of reserves</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: black 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: black 1px solid;width:9%;vertical-align:bottom;text-align:right;\">(647</td><td style=\"PADDING-BOTTOM: 1px;width:1%;vertical-align:bottom;white-space: nowrap;\">)</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: black 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: black 1px solid;width:9%;vertical-align:bottom;text-align:right;\">(488</td><td style=\"PADDING-BOTTOM: 1px;width:1%;vertical-align:bottom;white-space: nowrap;\">)</td></tr><tr style=\"height:15px;background-color:#cceeff\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Balance at the end of the year</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">410</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">494</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr></tbody></table>"}]},{"name":"rpt:f-1043","factDimensions":{"xbrl:concept":"us-gaap:ProductWarrantyAccrual","xbrl:period":"2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"494000","decimals":-3}]},{"name":"rpt:f-1044","factDimensions":{"xbrl:concept":"us-gaap:ProductWarrantyAccrual","xbrl:period":"2020-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"246000","decimals":-3}]},{"name":"rpt:f-1045","factDimensions":{"xbrl:concept":"us-gaap:ProductWarrantyAccrualWarrantiesIssued","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"465000","decimals":-3}]},{"name":"rpt:f-1046","factDimensions":{"xbrl:concept":"us-gaap:ProductWarrantyAccrualWarrantiesIssued","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"390000","decimals":-3}]},{"name":"rpt:f-1047","factDimensions":{"xbrl:concept":"us-gaap:ProductWarrantyAccrualPreexistingIncreaseDecrease","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"98000","decimals":-3}]},{"name":"rpt:f-1048","factDimensions":{"xbrl:concept":"us-gaap:ProductWarrantyAccrualPreexistingIncreaseDecrease","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"346000","decimals":-3}]},{"name":"rpt:f-1049","factDimensions":{"xbrl:concept":"us-gaap:ProductWarrantyAccrualPayments","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"647000","decimals":-3}]},{"name":"rpt:f-1050","factDimensions":{"xbrl:concept":"us-gaap:ProductWarrantyAccrualPayments","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"488000","decimals":-3}]},{"name":"rpt:f-1051","factDimensions":{"xbrl:concept":"us-gaap:ProductWarrantyAccrual","xbrl:period":"2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"410000","decimals":-3}]},{"name":"rpt:f-1052","factDimensions":{"xbrl:concept":"us-gaap:ProductWarrantyAccrual","xbrl:period":"2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"494000","decimals":-3}]},{"name":"rpt:f-1053","factDimensions":{"xbrl:concept":"us-gaap:SegmentReportingDisclosureTextBlock","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470"},"factValues":[{"value":"<p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\"><strong>15. SEGMENT INFORMATION:</strong></p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">The Company has only one reportable segment. The information for revenue category by type, product line, geography and timing of revenue recognition, is summarized in Note 2, \u201cRevenue.\u201d</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">Property and equipment information is based on the physical location of the assets. The following table presents property and equipment information for geographic areas (in thousands):</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><table cellpadding=\"0\" style=\"border-spacing:0;text-align:left;font:10pt times new roman;width:100%\"><tbody><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"6\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">May 31,</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2022</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2021</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">United States</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">1,156</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">647</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Asia</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">47</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">30</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Europe</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">-</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">-</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">1,203</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">677</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr></tbody></table><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">As of May 31, 2022, operating lease right-of-use assets of $822,000 and $95,000 were allocated in the United States and Asia, respectively.</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">There were no revenues through distributors for the fiscal years ended May 31, 2022 and 2021.</p>"}]},{"name":"rpt:f-1054","factDimensions":{"xbrl:concept":"us-gaap:LongLivedAssetsByGeographicAreasTableTextBlock","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470"},"factValues":[{"value":"<p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">Property and equipment information is based on the physical location of the assets. The following table presents property and equipment information for geographic areas (in thousands):</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><table cellpadding=\"0\" style=\"border-spacing:0;text-align:left;font:10pt times new roman;width:100%\"><tbody><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"6\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">May 31,</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2022</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2021</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">United States</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">1,156</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">647</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Asia</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">47</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">30</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Europe</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">-</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 1px solid;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:right;\">-</td><td style=\"PADDING-BOTTOM: 1px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">1,203</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"BORDER-BOTTOM: 3px double;width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"BORDER-BOTTOM: 3px double;width:9%;vertical-align:bottom;text-align:right;\">677</td><td style=\"PADDING-BOTTOM: 3px;width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr></tbody></table>"}]},{"name":"rpt:f-1055","factDimensions":{"xbrl:concept":"us-gaap:PropertyPlantAndEquipmentNet","xbrl:period":"2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD","srt:StatementGeographicalAxis":"aehr:UnitedStateMember"},"factValues":[{"value":"1156000","decimals":-3}]},{"name":"rpt:f-1056","factDimensions":{"xbrl:concept":"us-gaap:PropertyPlantAndEquipmentNet","xbrl:period":"2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD","srt:StatementGeographicalAxis":"aehr:UnitedStateMember"},"factValues":[{"value":"647000","decimals":-3}]},{"name":"rpt:f-1057","factDimensions":{"xbrl:concept":"us-gaap:PropertyPlantAndEquipmentNet","xbrl:period":"2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD","srt:StatementGeographicalAxis":"srt:AsiaMember"},"factValues":[{"value":"47000","decimals":-3}]},{"name":"rpt:f-1058","factDimensions":{"xbrl:concept":"us-gaap:PropertyPlantAndEquipmentNet","xbrl:period":"2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD","srt:StatementGeographicalAxis":"srt:AsiaMember"},"factValues":[{"value":"30000","decimals":-3}]},{"name":"rpt:f-1059","factDimensions":{"xbrl:concept":"us-gaap:PropertyPlantAndEquipmentNet","xbrl:period":"2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD","srt:StatementGeographicalAxis":"srt:EuropeMember"},"factValues":[{"value":"0","decimals":-3}]},{"name":"rpt:f-1060","factDimensions":{"xbrl:concept":"us-gaap:PropertyPlantAndEquipmentNet","xbrl:period":"2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD","srt:StatementGeographicalAxis":"srt:EuropeMember"},"factValues":[{"value":"0","decimals":-3}]},{"name":"rpt:f-1061","factDimensions":{"xbrl:concept":"us-gaap:PropertyPlantAndEquipmentNet","xbrl:period":"2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"1203000","decimals":-3}]},{"name":"rpt:f-1062","factDimensions":{"xbrl:concept":"us-gaap:PropertyPlantAndEquipmentNet","xbrl:period":"2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"677000","decimals":-3}]},{"name":"rpt:f-1063","factDimensions":{"xbrl:concept":"us-gaap:OperatingLeaseRightOfUseAsset","xbrl:period":"2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD","us-gaap:StatementBusinessSegmentsAxis":"aehr:UnitedStatesMember"},"factValues":[{"value":"822000","decimals":0}]},{"name":"rpt:f-1064","factDimensions":{"xbrl:concept":"us-gaap:OperatingLeaseRightOfUseAsset","xbrl:period":"2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD","srt:StatementGeographicalAxis":"srt:AsiaMember"},"factValues":[{"value":"95000","decimals":0}]},{"name":"rpt:f-1065","factDimensions":{"xbrl:concept":"aehr:DissolutionOfAehrTestSystemsJapanTextBlock","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470"},"factValues":[{"value":"<p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\"><strong>16. DISSOLUTION OF AEHR TEST SYSTEMS JAPAN</strong></p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">On July 31, 2020, the Company completed the liquidation of ATS-Japan, a majority owned subsidiary. Accordingly, the Company deconsolidated ATS-Japan and recognized an aggregate net gain of $2,401,000 for the period ended August 31, 2020. The net gain was mainly due to cumulative translation adjustment reclassified into earnings of $2,186,000 and the residual income tax effect in connection with the cumulative translation adjustment released into income tax benefits of $215,000.</p>"}]},{"name":"rpt:f-1066","factDimensions":{"xbrl:concept":"us-gaap:OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationReclassificationAdjustmentFromAOCIRealizedUponSaleOrLiquidationBeforeTax","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"-2401000","decimals":-3}]},{"name":"rpt:f-1067","factDimensions":{"xbrl:concept":"aehr:IncomeTaxBenefitRelatedToDissolutionsOfSubsidiary","xbrl:period":"2020-06-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"215000","decimals":0}]},{"name":"rpt:f-1068","factDimensions":{"xbrl:concept":"us-gaap:RestructuringAndRelatedActivitiesDisclosureTextBlock","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470"},"factValues":[{"value":"<p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\"><strong>17. RESTRUCTURING:</strong></p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">During the fiscal year ended May 31, 2020,<strong> </strong>the Company approved the dissolution of Aehr Test Systems Japan K.K (\u201cATS-Japan\u201d), a majority owned subsidiary. In connection with the dissolution plan, the Company recognized approximately $220,000 in the fourth quarter of fiscal 2020 related to severance payments for individuals impacted in this reduction, legal fees associated with the dissolution process, and write-off of assets. The ATS-J subsidiary was dissolved in March 2020. The liquidation process occurred from March 2020 through the final liquidation in July 2020, allowing creditors time to submit claims and time for ATS-J to wind down and disposition any assets.</p>"}]},{"name":"rpt:f-1069","factDimensions":{"xbrl:concept":"us-gaap:RestructuringCharges","xbrl:period":"2020-03-01T00:00:00/2020-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"220000","decimals":0}]},{"name":"rpt:f-1070","factDimensions":{"xbrl:concept":"us-gaap:RelatedPartyTransactionsDisclosureTextBlock","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470"},"factValues":[{"value":"<p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\"><strong>18. RELATED PARTY TRANSACTIONS:</strong></p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">Mario M. Rosati, one of the Company\u2019s directors, was also a member of Wilson Sonsini Goodrich &amp; Rosati, Professional Corporation, which has served as the Company\u2019s outside corporate counsel and has received compensation at normal commercial rates for these services during fiscal year ended May 21, 2020. Mario M. Rosati retired from Wilson Sonsini Goodrich &amp; Rosati on January 31, 2020. The amounts of transactions during fiscal years ended May 31, 2020 were $78,000. At May 31, 2020 the Company had a prepayment to Wilson Sonsini Goodrich &amp; Rosati of $14,000.</p>"}]},{"name":"rpt:f-1071","factDimensions":{"xbrl:concept":"us-gaap:RelatedPartyTransactionAmountsOfTransaction","xbrl:period":"2019-06-01T00:00:00/2020-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"78000000","decimals":-3}]},{"name":"rpt:f-1072","factDimensions":{"xbrl:concept":"us-gaap:DueFromRelatedParties","xbrl:period":"2020-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"14000000","decimals":-3}]},{"name":"rpt:f-1073","factDimensions":{"xbrl:concept":"us-gaap:CommitmentsAndContingenciesDisclosureTextBlock","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470"},"factValues":[{"value":"<p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\"><strong>19. COMMITMENTS AND CONTINGENCIES:</strong></p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">COMMITMENTS</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">At both May 31, 2022 and 2021, the Company had restricted cash of $80,000 held by a financial institution, representing a security deposit for its United States manufacturing and office space lease. This amount is included in other assets on the consolidated balance sheets.</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">PURCHASE OBLIGATIONS</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">The Company has purchase obligations to certain suppliers. In some cases the products the Company purchases are unique and have provisions against cancellation of the order. At May 31, 2022, the Company had $17,576,000 of purchase obligations which are due within the following 12 months. This amount does not include contractual obligations recorded on the consolidated balance sheets as liabilities.</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">CONTINGENCIES</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">The Company may, from time to time, be involved in legal proceedings arising in the ordinary course of business. While there can be no assurances as to the ultimate outcome of any litigation involving the Company, management does not believe any pending legal proceedings will result in judgment or settlement that will have a material adverse effect on the Company\u2019s consolidated financial position, results of operations or cash flows.</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">In the normal course of business to facilitate sales of its products, the Company indemnifies other parties, including customers, with respect to certain matters, for example, including against losses arising from a breach of representations or covenants, or from intellectual property infringement or other claims. These agreements may limit the time within which an indemnification claim can be made and the amount of the claim. In addition, the Company has entered into indemnification agreements with its officers and directors, and the Company\u2019s bylaws contain similar indemnification obligations to the Company\u2019s agents.</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">It is not possible to determine the maximum potential amount under these indemnification agreements due to the limited history of prior indemnification claims and the unique facts and circumstances involved in each particular agreement. To date, payments made by the Company under these agreements have not had a material impact on the Company\u2019s operating results, financial position or cash flows.</p>"}]},{"name":"rpt:f-1074","factDimensions":{"xbrl:concept":"us-gaap:RestrictedCash","xbrl:period":"2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"80000","decimals":0}]},{"name":"rpt:f-1075","factDimensions":{"xbrl:concept":"us-gaap:PurchaseObligation","xbrl:period":"2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"17576000","decimals":0}]},{"name":"rpt:f-1076","factDimensions":{"xbrl:concept":"us-gaap:QuarterlyFinancialInformationTextBlock","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470"},"factValues":[{"value":"<p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\"><strong>20. SELECTED QUARTERLY CONSOLIDATED FINANCIAL DATA (UNAUDITED):</strong></p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">The following tables (presented in thousands, except per share data) sets forth selected unaudited condensed consolidated statements of operations data for each of the four quarters of the fiscal years ended May 31, 2022 and 2021. The unaudited quarterly information has been prepared on the same basis as the annual information presented elsewhere herein and, in the Company\u2019s opinion, includes all adjustments (consisting only of normal recurring entries) necessary for a fair statement of the information for the quarters presented. The operating results for any quarter are not necessarily indicative of results for any future period and should be read in conjunction with the audited consolidated financial statements of the Company\u2019s and the notes thereto included elsewhere herein.</p><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;\">\u00a0</p><table cellpadding=\"0\" style=\"border-spacing:0;text-align:left;font:10pt times new roman;width:100%\"><tbody><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"14\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Three Months Ended</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Aug 31,</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Nov 30,</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Feb 28,</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">May 31,</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2021</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2021</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2022</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2022</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Net sales</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">5,646</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">9,611</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">15,283</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">20,289</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Gross profit</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">2,281</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">4,519</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">6,397</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">10,468</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Net income</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">696</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">717</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">2,243</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">5,794</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Net income per share basic</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">0.03</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">0.03</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">0.08</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">0.21</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Net income per share diluted</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">0.03</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">0.03</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">0.08</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">0.20</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr></tbody></table><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u00a0</p><table cellpadding=\"0\" style=\"border-spacing:0;text-align:left;font:10pt times new roman;width:100%\"><tbody><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"14\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Three Months Ended</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Aug 31,</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Nov 30,</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Feb 28,</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">May 31,</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2020</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2020</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2021</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2021</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Net sales</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">2,012</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">1,683</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">5,267</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">7,638</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Gross profit</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">227</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">377</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">1,894</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">3,534</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Net income (loss)</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">107</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">(1,966</td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">)</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">(735</td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">)</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">567</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Net income (loss) per share basic and diluted</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">0.00</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">(0.08</td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">)</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">(0.03</td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">)</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">0.02</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr></tbody></table>"}]},{"name":"rpt:f-1077","factDimensions":{"xbrl:concept":"us-gaap:ScheduleOfQuarterlyFinancialInformationTableTextBlock","xbrl:period":"2021-06-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470"},"factValues":[{"value":"<p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 45px; text-align:justify;\">The following tables (presented in thousands, except per share data) sets forth selected unaudited condensed consolidated statements of operations data for each of the four quarters of the fiscal years ended May 31, 2022 and 2021. The unaudited quarterly information has been prepared on the same basis as the annual information presented elsewhere herein and, in the Company\u2019s opinion, includes all adjustments (consisting only of normal recurring entries) necessary for a fair statement of the information for the quarters presented. The operating results for any quarter are not necessarily indicative of results for any future period and should be read in conjunction with the audited consolidated financial statements of the Company\u2019s and the notes thereto included elsewhere herein.</p><table cellpadding=\"0\" style=\"border-spacing:0;text-align:left;font:10pt times new roman;width:100%\"><tbody><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"14\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Three Months Ended</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Aug 31,</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Nov 30,</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Feb 28,</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">May 31,</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2021</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2021</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2022</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2022</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Net sales</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">5,646</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">9,611</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">15,283</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">20,289</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Gross profit</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">2,281</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">4,519</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">6,397</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">10,468</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Net income</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">696</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">717</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">2,243</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">5,794</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Net income per share basic</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">0.03</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">0.03</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">0.08</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">0.21</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Net income per share diluted</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">0.03</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">0.03</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">0.08</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">0.20</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr></tbody></table><table cellpadding=\"0\" style=\"border-spacing:0;text-align:left;font:10pt times new roman;width:100%\"><tbody><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"14\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Three Months Ended</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Aug 31,</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Nov 30,</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">Feb 28,</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">May 31,</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px\"><td><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2020</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2020</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2021</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td class=\"hdcell\" colspan=\"2\" style=\"BORDER-BOTTOM: 1px solid;width:9%;vertical-align:bottom;text-align:center;\"><p style=\"FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:center;\">2021</p></td><td style=\"PADDING-BOTTOM: 1px;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Net sales</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">2,012</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">1,683</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">5,267</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">7,638</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Gross profit</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">227</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">377</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">1,894</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">3,534</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#cceeff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Net income (loss)</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">107</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">(1,966</td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">)</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">(735</td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">)</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">567</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr><tr style=\"height:15px;background-color:#ffffff\"><td style=\"vertical-align:top;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">Net income (loss) per share basic and diluted</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">0.00</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">(0.08</td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">)</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">(0.03</td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">)</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td><td style=\"width:1%;vertical-align:bottom;white-space: nowrap;\">$</td><td class=\"ffcell\" style=\"width:9%;vertical-align:bottom;text-align:right;\">0.02</td><td style=\"width:1%;white-space: nowrap;\"><p style=\"font-size:10pt;font-family:times new roman;margin:0px\">\u00a0</p></td></tr></tbody></table>"}]},{"name":"rpt:f-1078","factDimensions":{"xbrl:concept":"us-gaap:Revenues","xbrl:period":"2021-06-01T00:00:00/2021-09-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"5646000","decimals":-3}]},{"name":"rpt:f-1079","factDimensions":{"xbrl:concept":"us-gaap:Revenues","xbrl:period":"2021-09-01T00:00:00/2021-12-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"9611000","decimals":-3}]},{"name":"rpt:f-1080","factDimensions":{"xbrl:concept":"us-gaap:Revenues","xbrl:period":"2021-12-01T00:00:00/2022-03-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"15283000","decimals":-3}]},{"name":"rpt:f-1081","factDimensions":{"xbrl:concept":"us-gaap:Revenues","xbrl:period":"2022-03-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"20289000","decimals":-3}]},{"name":"rpt:f-1082","factDimensions":{"xbrl:concept":"us-gaap:GrossProfit","xbrl:period":"2021-06-01T00:00:00/2021-09-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"2281000","decimals":-3}]},{"name":"rpt:f-1083","factDimensions":{"xbrl:concept":"us-gaap:GrossProfit","xbrl:period":"2021-09-01T00:00:00/2021-12-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"4519000","decimals":-3}]},{"name":"rpt:f-1084","factDimensions":{"xbrl:concept":"us-gaap:GrossProfit","xbrl:period":"2021-12-01T00:00:00/2022-03-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"6397000","decimals":-3}]},{"name":"rpt:f-1085","factDimensions":{"xbrl:concept":"us-gaap:GrossProfit","xbrl:period":"2022-03-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"10468000","decimals":-3}]},{"name":"rpt:f-1086","factDimensions":{"xbrl:concept":"us-gaap:NetIncomeLoss","xbrl:period":"2021-06-01T00:00:00/2021-09-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"696000","decimals":-3}]},{"name":"rpt:f-1087","factDimensions":{"xbrl:concept":"us-gaap:NetIncomeLoss","xbrl:period":"2021-09-01T00:00:00/2021-12-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"717000","decimals":-3}]},{"name":"rpt:f-1088","factDimensions":{"xbrl:concept":"us-gaap:NetIncomeLoss","xbrl:period":"2021-12-01T00:00:00/2022-03-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"2243000","decimals":-3}]},{"name":"rpt:f-1089","factDimensions":{"xbrl:concept":"us-gaap:NetIncomeLoss","xbrl:period":"2022-03-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"5794000","decimals":-3}]},{"name":"rpt:f-1090","factDimensions":{"xbrl:concept":"us-gaap:EarningsPerShareBasic","xbrl:period":"2021-06-01T00:00:00/2021-09-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD/xbrla:shares"},"factValues":[{"value":"0.03"}]},{"name":"rpt:f-1091","factDimensions":{"xbrl:concept":"us-gaap:EarningsPerShareBasic","xbrl:period":"2021-09-01T00:00:00/2021-12-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD/xbrla:shares"},"factValues":[{"value":"0.03"}]},{"name":"rpt:f-1092","factDimensions":{"xbrl:concept":"us-gaap:EarningsPerShareBasic","xbrl:period":"2021-12-01T00:00:00/2022-03-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD/xbrla:shares"},"factValues":[{"value":"0.08"}]},{"name":"rpt:f-1093","factDimensions":{"xbrl:concept":"us-gaap:EarningsPerShareBasic","xbrl:period":"2022-03-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD/xbrla:shares"},"factValues":[{"value":"0.21"}]},{"name":"rpt:f-1094","factDimensions":{"xbrl:concept":"us-gaap:EarningsPerShareDiluted","xbrl:period":"2021-06-01T00:00:00/2021-09-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD/xbrla:shares"},"factValues":[{"value":"0.03"}]},{"name":"rpt:f-1095","factDimensions":{"xbrl:concept":"us-gaap:EarningsPerShareDiluted","xbrl:period":"2021-12-01T00:00:00/2022-03-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD/xbrla:shares"},"factValues":[{"value":"0.08"}]},{"name":"rpt:f-1096","factDimensions":{"xbrl:concept":"us-gaap:EarningsPerShareDiluted","xbrl:period":"2022-03-01T00:00:00/2022-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD/xbrla:shares"},"factValues":[{"value":"0.20"}]},{"name":"rpt:f-1097","factDimensions":{"xbrl:concept":"us-gaap:Revenues","xbrl:period":"2020-06-01T00:00:00/2020-09-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"2012000","decimals":-3}]},{"name":"rpt:f-1098","factDimensions":{"xbrl:concept":"us-gaap:Revenues","xbrl:period":"2020-09-01T00:00:00/2020-12-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"1683000","decimals":-3}]},{"name":"rpt:f-1099","factDimensions":{"xbrl:concept":"us-gaap:Revenues","xbrl:period":"2020-12-01T00:00:00/2021-03-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"5267000","decimals":-3}]},{"name":"rpt:f-1100","factDimensions":{"xbrl:concept":"us-gaap:Revenues","xbrl:period":"2021-03-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"7638000","decimals":-3}]},{"name":"rpt:f-1101","factDimensions":{"xbrl:concept":"us-gaap:GrossProfit","xbrl:period":"2020-09-01T00:00:00/2020-12-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"377000","decimals":-3}]},{"name":"rpt:f-1102","factDimensions":{"xbrl:concept":"us-gaap:GrossProfit","xbrl:period":"2020-12-01T00:00:00/2021-03-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"1894000","decimals":-3}]},{"name":"rpt:f-1103","factDimensions":{"xbrl:concept":"us-gaap:GrossProfit","xbrl:period":"2021-03-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"3534000","decimals":-3}]},{"name":"rpt:f-1104","factDimensions":{"xbrl:concept":"us-gaap:NetIncomeLoss","xbrl:period":"2020-06-01T00:00:00/2020-09-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"107000","decimals":-3}]},{"name":"rpt:f-1105","factDimensions":{"xbrl:concept":"us-gaap:NetIncomeLoss","xbrl:period":"2020-09-01T00:00:00/2020-12-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"-1966000","decimals":-3}]},{"name":"rpt:f-1106","factDimensions":{"xbrl:concept":"us-gaap:NetIncomeLoss","xbrl:period":"2020-12-01T00:00:00/2021-03-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"-735000","decimals":-3}]},{"name":"rpt:f-1107","factDimensions":{"xbrl:concept":"us-gaap:NetIncomeLoss","xbrl:period":"2021-03-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD"},"factValues":[{"value":"567000","decimals":-3}]},{"name":"rpt:f-1108","factDimensions":{"xbrl:concept":"us-gaap:EarningsPerShareBasic","xbrl:period":"2020-06-01T00:00:00/2020-09-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD/xbrla:shares"},"factValues":[{"value":"0.00"}]},{"name":"rpt:f-1109","factDimensions":{"xbrl:concept":"us-gaap:EarningsPerShareBasic","xbrl:period":"2020-09-01T00:00:00/2020-12-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD/xbrla:shares"},"factValues":[{"value":"-0.08"}]},{"name":"rpt:f-1110","factDimensions":{"xbrl:concept":"us-gaap:EarningsPerShareBasic","xbrl:period":"2020-12-01T00:00:00/2021-03-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD/xbrla:shares"},"factValues":[{"value":"-0.03"}]},{"name":"rpt:f-1111","factDimensions":{"xbrl:concept":"us-gaap:EarningsPerShareBasic","xbrl:period":"2021-03-01T00:00:00/2021-06-01T00:00:00","xbrl:entity":"cik:0001040470","xbrl:unit":"iso4217:USD/xbrla:shares"},"factValues":[{"value":"0.02"}]}]}}