Condensed Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Feb. 29, 2016	Feb. 28, 2015	Feb. 29, 2016	Feb. 28, 2015
Income Statement [Abstract]
Net sales	$ 1,677	$ 2,027	$ 12,930	$ 8,200
Cost of sales	1,508	1,175	7,687	5,044
Gross profit	169	852	5,243	3,156
Operating expenses:
Selling, general and administrative	1,695	1,584	5,253	4,944
Research and development	1,293	1,031	3,278	3,095
Total operating expenses	2,988	2,615	8,531	8,039
Loss from operations	(2,819)	(1,763)	(3,288)	(4,883)
Interest expense	(165)	(7)	(437)	(29)
Other (expense) income, net	(24)	110	7	201
Loss before income tax benefit (expense)	(3,008)	(1,660)	(3,718)	(4,711)
Income tax benefit (expense)	33	(66)	(11)	(36)
Net Loss	(2,975)	(1,726)	(3,729)	(4,747)
Less: Net income attributable to the noncontrolling interest	0	0	0	0
Net loss attributable to Aehr Test Systems common shareholders	$ (2,975)	$ (1,726)	$ (3,729)	$ (4,747)
Net loss per share - basic and diluted	$ (0.23)	$ (0.14)	$ (0.29)	$ (0.40)
Shares used in per share calculations - Basic and Diluted (in thousands)	13,164	12,677	13,058	11,931