13. EMPLOYEE BENEFIT PLANS (Details Narrative) - USD ($)	12 Months Ended
	May. 31, 2015	May. 31, 2014	May. 31, 2013
Employee Benefit Plans Details Narrative
Contributions to ESOP	$ 60,000	$ 60,000	$ 60,000
Shares contributed to the ESOP for fiscal year	26,548	41,666	47,244
Common stock issued under ESPP plan	87,000	120,000	156,000