DEBT ISSUANCE COSTS (Details) (USD $)	3 Months Ended	9 Months Ended
	Feb. 28, 2014	Feb. 28, 2014	May 10, 2013
DEBT ISSUANCE COSTS DURING THE PERIOD:
Direct costs incurred in establishing debt agreement			$ 238,000
Unamortized debt issuance costs			108,000
Amortization expense related to debt issuance costs	$ 22,000	$ 81,000