Condensed Consolidated Statements of Operations (Unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Aug. 31, 2012	Aug. 31, 2011
Net sales
Net sales	$ 4,832	$ 4,130
Cost of sales	2,376	2,328
Gross profit	2,456	1,802
Operating expenses:
Selling, general and administrative	1,789	1,601
Research and development	930	1,082
Total operating expenses	2,719	2,683
Loss from operations	(263)	(881)
Interest expense	(12)	0
Gain on sale of long-term investment	0	990
Other expense, net	(19)	(12)
(Loss) income before income tax (expense) benefit	(294)	97
Income tax (expense) benefit	(2)	27
Net (loss) income	(296)	124
Less: Net income attributable to the noncontrolling interest	0	0
Net (loss) income attributable to Aehr Test Systems common shareholders	$ (296)	$ 124
Net (loss) income per share - basic	$ (0.03)	$ 0.01
Net (loss) income per share - diluted	$ (0.03)	$ 0.01
Shares used in per share calculation - basic	9,166	8,932
Shares used in per share calculation - diluted	9,166	9,100