1. ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 4) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	May 31, 2013	Feb. 28, 2013	Nov. 30, 2012	Aug. 31, 2012	May 31, 2012	Feb. 29, 2012	Nov. 30, 2011	Aug. 31, 2011	May 31, 2013	May 31, 2012	May 31, 2011
Organization And Summary Of Significant Accounting Policies Details 4
Net loss	$ (854)	$ (1,458)	$ (811)	$ (296)	$ (779)	$ (1,361)	$ (1,373)	$ 124	$ (3,419)	$ (3,390)	$ (3,389)
Denominator for basic net loss per share: Weighted average shares outstanding									9,549	9,016	8,776
Shares used in basic net loss per share calculation									9,549	9,016	8,776
Effect of dilutive securities									0	0	0
Denominator for diluted net loss per share									9,549	9,016	8,776
Basic Net loss per share									$ (0.36)	$ (0.38)	$ (0.39)
Diluted Net loss per share									$ (0.36)	$ (0.38)	$ (0.39)