7. INCOME TAXES (Details 1) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	May 31, 2014	May 31, 2013	May 31, 2012
Components of Income Tax Benefit (Expense):
Current	$ 0	$ 0	$ 0
Deferred	0	0	0
State income taxes:
Current	(30)	(21)	(12)
Deferred	0	0	0
Foreign income taxes:
Current	45	(9)	27
Deferred	0	0	0
Income tax benefit (expense)	$ 15	$ (30)	$ 15