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CUSTOMER DEPOSITS AND DEFERRED REVENUE SHORTTERM (Details) - USD ($) $ in Thousands | Feb. 28, 2023 | May 31, 2022
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CUSTOMER DEPOSITS AND DEFERRED REVENUE SHORTTERM |  |
Total | $ 843 | $ 2,415
Customer deposits | 760 | 2,263
Deferred revenue | $ 83 | $ 152

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- Definition Tabular disclosure of the type of arrangements and the corresponding amounts that comprise the current and noncurrent balance of deferred revenue as of the balance sheet date. + References No definition available. + Details
Name: | aehr_CustomerDepositsAndDeferredRevenue
Namespace Prefix: | aehr_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- References No definition available. + Details
Name: | aehr_CustomerDepositsAndDeferredRevenueShortTermAbstract
Namespace Prefix: | aehr_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition The current portion of money or property received from customers which is either to be returned upon satisfactory contract completion or applied to customer receivables in accordance with the terms of the contract or the understandings. + References Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.20) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
Name: | us-gaap_CustomerDepositsCurrent
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Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Amount of deferred income and obligation to transfer product and service to customer for which consideration has been received or is receivable. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(26)(c)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant