Condensed Consolidated Statements of Shareholders' Equity (Unaudited) - USD ($) $ in Thousands	Common Stock	Additional Paid-in Capital	Accumulated Other Comprehensive Income	Accumulated Deficit	Total Aehr Test Systems Shareholders' Equity	Noncontrolling Interest	Total
Beginning balance, shares (in thousands) at May. 31, 2019	22,669
Beginning balance, amount at May. 31, 2019	$ 227	$ 84,499	$ 2,230	$ (71,484)	$ 15,472	$ (19)	$ 15,453
Issuance of common stock under employee plans, shares (in thousands)	245
Issuance of common stock under employee plans, amount	$ 2	291			293		293
Stock-based compensation		404			404		404
Net (loss) income				(162)	(162)		(162)
Foreign currency translation adjustment			(19)		(19)	(1)	(20)
Reclassification of cumulative translation adjustment as a result of dissolution of Aehr Test Systems Japan							0
Ending balance, shares (in thousands) at Nov. 30, 2019	22,914
Ending balance, amount at Nov. 30, 2019	$ 229	85,194	2,211	(71,646)	15,988	(20)	15,968
Beginning balance, shares (in thousands) at Aug. 31, 2019	22,721
Beginning balance, amount at Aug. 31, 2019	$ 227	84,760	2,216	(71,897)	15,306	(20)	15,286
Issuance of common stock under employee plans, shares (in thousands)	193
Issuance of common stock under employee plans, amount	$ 2	229			231		231
Stock-based compensation		205			205		205
Net (loss) income				251	251		251
Foreign currency translation adjustment			(5)		(5)		(5)
Reclassification of cumulative translation adjustment as a result of dissolution of Aehr Test Systems Japan							0
Ending balance, shares (in thousands) at Nov. 30, 2019	22,914
Ending balance, amount at Nov. 30, 2019	$ 229	85,194	2,211	(71,646)	15,988	(20)	15,968
Beginning balance, shares (in thousands) at May. 31, 2020	23,107
Beginning balance, amount at May. 31, 2020	$ 231	85,898	2,234	(74,286)	14,077	(21)	14,056	[1]
Reclassification of cumulative translation adjustment as a result of dissolution of Aehr Test Systems Japan							(2,401)
Ending balance, shares (in thousands) at Aug. 31, 2020	23,291
Ending balance, amount at Aug. 31, 2020	$ 233	86,356	(67)	(74,201)	12,321	0	12,321
Beginning balance, shares (in thousands) at May. 31, 2020	23,107
Beginning balance, amount at May. 31, 2020	$ 231	85,898	2,234	(74,286)	14,077	(21)	14,056	[1]
Issuance of common stock under employee plans, shares (in thousands)	380
Issuance of common stock under employee plans, amount	$ 4	361			365		365
Stock-based compensation		527			527		527
Net (loss) income				(1,859)	(1,859)		(1,859)
Foreign currency translation adjustment			105		105	(1)	104
Reclassification of cumulative translation adjustment as a result of dissolution of Aehr Test Systems Japan			(2,401)	(22)	(2,423)	22	(2,401)
Ending balance, shares (in thousands) at Nov. 30, 2020	23,487
Ending balance, amount at Nov. 30, 2020	$ 235	86,786	(62)	(76,167)	10,792	0	10,792
Beginning balance, shares (in thousands) at Aug. 31, 2020	23,291
Beginning balance, amount at Aug. 31, 2020	$ 233	86,356	(67)	(74,201)	12,321	0	12,321
Issuance of common stock under employee plans, shares (in thousands)	196
Issuance of common stock under employee plans, amount	$ 2	173			175		175
Stock-based compensation		257			257		257
Net (loss) income				(1,966)	(1,966)		(1,966)
Foreign currency translation adjustment			5		5		5
Reclassification of cumulative translation adjustment as a result of dissolution of Aehr Test Systems Japan							0
Ending balance, shares (in thousands) at Nov. 30, 2020	23,487
Ending balance, amount at Nov. 30, 2020	$ 235	$ 86,786	$ (62)	$ (76,167)	$ 10,792	$ 0	$ 10,792

[1] The condensed consolidated balance sheet at May 31, 2020 has been derived from the audited consolidated financial statements at that date.