Condensed Consolidated Statements of Operations (Unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Nov. 30, 2012	Nov. 30, 2011	Nov. 30, 2012	Nov. 30, 2011
Condensed Consolidated Statements Of Operations
Net sales	$ 5,054	$ 3,860	$ 9,886	$ 7,990
Cost of sales	2,791	2,732	5,167	5,060
Gross profit	2,263	1,128	4,719	2,930
Operating expenses:
Selling, general and administrative	2,068	1,528	3,857	3,129
Research and development	962	1,039	1,892	2,121
Total operating expenses	3,030	2,567	5,749	5,250
Loss from operations	(767)	(1,439)	(1,030)	(2,320)
Interest expense	(13)	0	(25)	0
Gain on sale of long-term investment	0	0	0	990
Other (expense) income, net	(15)	58	(34)	46
Loss before income tax (expense) benefit	(795)	(1,381)	(1,089)	(1,284)
Income tax (expense) benefit	(16)	8	(18)	35
Net Loss	(811)	(1,373)	(1,107)	(1,249)
Less: Net income attributable to the noncontrolling interest	0	0	0	0
Net loss attributable to Aehr Test Systems Common shareholders	$ (811)	$ (1,373)	$ (1,107)	$ (1,249)
Net loss per share - basic	$ (0.09)	$ (0.15)	$ (0.12)	$ (0.14)
Net loss per share - diluted	$ (0.09)	$ (0.15)	$ (0.12)	$ (0.14)
Shares used in per share calculation - basic	9,300	8,980	9,233	8,956
Shares used in per share calculation - diluted	9,300	8,980	9,233	8,956