14. OTHER INCOME (EXPENSE), NET (Details) - USD ($) $ in Thousands	12 Months Ended
	May. 31, 2015	May. 31, 2014	May. 31, 2013
Other Income Expense Net Details
Foreign exchange gain (loss)	$ 194	$ (47)	$ (36)
Other, net	17	(17)	3
Other income (expense), net	$ 211	$ (64)	$ (33)