3. EARNINGS PER SHARE (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Nov. 30, 2013	Nov. 30, 2012	Nov. 30, 2013	Nov. 30, 2012
Earnings Per Share Details
Numerator: Net income (loss)	$ 137	$ (811)	$ (29)	$ (1,107)
Denominator for basic net income (loss) per share: Weighted average shares outstanding (in thousands)	10,806	9,300	10,721	9,233
Shares used in basic net income (loss) per share calculation (in thousands)	10,806	9,300	10,721	9,233
Effect of dilutive securities (in thousands)	1,033	0	0	0
Denominator for diluted net income (loss) per share (in thousands)	11,839	9,300	10,721	9,233
Basic net income (loss) per share	$ 0.01	$ (0.09)	$ 0.00	$ (0.12)
Diluted net income (loss) per share	$ 0.01	$ (0.09)	$ 0.00	$ (0.12)