Condensed Consolidated Statements of Operations (Unaudited) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Nov. 30, 2014	Nov. 30, 2013	Nov. 30, 2014	Nov. 30, 2013
Income Statement [Abstract]
Net sales	$ 2,615	$ 4,950	$ 6,173	$ 8,702
Cost of sales	1,921	2,456	3,869	4,264
Gross profit	694	2,494	2,304	4,438
Operating expenses:
Selling, general and administrative	1,736	1,517	3,360	2,937
Research and development	1,105	798	2,064	1,479
Total operating expenses	2,841	2,315	5,424	4,416
(Loss) income from operations	(2,147)	179	(3,120)	22
Interest expense	(8)	(10)	(22)	(14)
Other income (expense), net	60	(30)	91	(64)
(Loss) income before income tax (expense) benefit	(2,095)	139	(3,051)	(56)
Income tax (expense) benefit	(19)	(2)	30	27
Net (loss) income	(2,114)	137	(3,021)	(29)
Less: Net income attributable to the noncontrolling interest	0	0	0	0
Net (loss) income attributable to Aehr Test Systems common shareholders	$ (2,114)	$ 137	$ (3,021)	$ (29)
Net (loss) income per share - basic	$ (0.18)	$ 0.01	$ (0.26)	$ 0.00
Net (loss) income per share - diluted	$ (0.18)	$ 0.01	$ (0.26)	$ 0.00
Shares used in per share calculations - Basic	11,724	10,806	11,557	10,721
Shares used in per share calculations - Diluted	11,724	11,839	11,557	10,721