Condensed Consolidated Statements of Comprehensive Loss (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Nov. 30, 2015	Nov. 30, 2014	Nov. 30, 2015	Nov. 30, 2014
Statement of Comprehensive Income [Abstract]
Net loss	$ (1,048)	$ (2,114)	$ (754)	$ (3,021)
Other comprehensive loss, net of tax: Net change in cumulative translation adjustment	(60)	(76)	(42)	(112)
Total comprehensive loss	(1,108)	(2,190)	(796)	(3,133)
Less: Comprehensive income attributable to the noncontrolling interest	0	2	0	3
Comprehensive loss, attributable to Aehr Test Systems	$ (1,108)	$ (2,192)	$ (796)	$ (3,136)