1. ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 4) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	May. 31, 2015	Feb. 28, 2015	Nov. 30, 2014	Aug. 31, 2014	May. 31, 2014	Feb. 28, 2014	Nov. 30, 2013	Aug. 31, 2013	May. 31, 2015	May. 31, 2014	May. 31, 2013
Organization And Summary Of Significant Accounting Policies Details 4
Numerator: Net (loss) income	$ (1,900)	$ (1,726)	$ (2,114)	$ (907)	$ 239	$ 212	$ 137	$ (166)	$ (6,647)	$ 422	$ (3,419)
Denominator for basic net (loss) income per share: Weighted average shares outstanding									12,047,000	10,877,000	9,549,000
Shares used in basic net (loss) income per share calculation									12,047,000	10,877,000	9,549,000
Effect of dilutive securities									0	1,012,000	0
Denominator for diluted net (loss) income per share									12,047,000	11,889,000	9,549,000
Basic net (loss) income per share									$ (.55)	$ .04	$ (.36)
Diluted net (loss) income per share									$ (.55)	$ .04	$ (.36)