11. EMPLOYEE BENEFIT PLANS (Details Narrative) - USD ($) $ in Thousands	12 Months Ended
	May 31, 2016	May 31, 2015	May 31, 2014
Contributions to ESOP	$ 60	$ 60	$ 60
Shares contributed to the ESOP for fiscal year	25,000	26,548	41,666
2006 Purchase Plan
Common stock issued under ESPP plan	86,000	87,000	120,000
Shares available under plan	1,150,000
Maximum calendar year contribution per employee	$ 25	$ 25	$ 25
Shares issued under plan	968,000