SHAREHOLDERS' EQUITY (Details) - Non-vested Stock Options Activity - $ / shares	12 Months Ended
	May. 31, 2015	May. 31, 2014
Non-vested Stock Options Activity [Abstract]
Nonvested shares at May 31,2014	411,000
Nonvested shares at May 31,2014	$ 0.56
Nonvested shares at May 31,2015	527,125	411,000
Nonvested shares at May 31,2015	$ 0.75	$ 0.56
Granted	356,000
Granted	$ 0.82	$ 0.75
Vested/Issued	(199,875)
Vested/Issued	$ 0.48
Forfeited	(40,000)
Forfeited	$ 0.72