Consolidated Statements of Comprehensive Income (Loss) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	May 31, 2014	May 31, 2013	May 31, 2012
Consolidated Statements Of Comprehensive Income Loss
Net income (loss)	$ 422	$ (3,419)	$ (3,389)
Other comprehensive income (loss), net of tax: Foreign currency translation income (loss)	45	(14)	(135)
Total comprehensive income (loss)	467	(3,433)	(3,524)
Less: Comprehensive (loss) income attributable to noncontrolling interest	(1)	2	1
Comprehensive income (loss), attributable to Aehr Test Systems	$ 468	$ (3,435)	$ (3,525)