9. STOCK OPTIONS (Details) (USD $)	12 Months Ended
	May 31, 2014	May 31, 2013	May 31, 2012
Proceeds from Issuance of Shares under Incentive and Share-based Compensation Plans, Including Stock Options [Abstract]
Options outstanding	2,100,000	2,450,000	2,100,000
Options outstanding - Weighted average exercise price	$ 0.12	$ 0.16	$ 0.12
Options outstanding - Remaining Contractual Life (years)	8 years	7 years 9 months
Options awarded		2,100,000
Options awarded - Weighted average exercise price		$ 0.12
Options expired		(1,050,000)
Options expired - Weighted average exercise price		$ 0.61
Options excercisable	525,000
Options excercisable - Weighted average exercise price	$ 0.12
Options excercisable - Remaining Contractual Life (years)	8 years
Options excercisable - Intrinsic Value	$ 204,750
Non-vested options	1,575,000
Non-vested options - Weighted average exercise price	$ 0.12
Non-vested options - Remaining Contractual Life (years)	8 years
Non-vested options - Intrinsic Value	$ 614,250