Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Aug. 31, 2020	Aug. 31, 2019
Cash flows from operating activities:
Net income (loss)	$ 107	$ (413)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Stock-based compensation expense	270	199
Depreciation and amortization	82	95
Net gain from dissolution of Aehr Test Systems Japan	(2,186)	0
Income tax benefit related to dissolution of Aehr Test Systems Japan	(215)	0
Changes in operating assets and liabilities:
Accounts receivable	2,642	1,584
Inventories	(112)	(156)
Prepaid expenses and other assets	80	194
Accounts payable	(173)	(235)
Accrued expenses	(67)	(455)
Customer deposits and deferred revenue	214	(1,006)
Income taxes payable	1	3
Net cash provided by (used in) operating activities	643	(190)
Cash flows from investing activities:
Purchases of property and equipment	(47)	(50)
Net cash used in investing activities	(47)	(50)
Cash flows from financing activities:
Proceeds from issuance of common stock under employee plans, net of taxes paid related to share settlement of equity awards	190	62
Net cash provided by financing activities	190	62
Effect of exchange rates on cash, cash equivalents and restricted cash	94	16
Net increase (decrease) in cash, cash equivalents and restricted cash	880	(162)
Cash, cash equivalents and restricted cash, beginning of period	5,513	5,508
Cash, cash equivalents and restricted cash, end of period	$ 6,393	$ 5,346