Provision for income taxes As follows (details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	May 31, 2014	May 31, 2013
Provision for income taxes As follows:
Federal	$ 0	$ 0
Foreign	0	13
State and local	2	2
Total current provision	2	15
Deferred provision	268	148
Valuation allowance	(268)	(148)
Total deferred provision	0	0
Total provision	$ 2	$ 15