Items (Details) - USD ($)	12 Months Ended
	May. 31, 2015	May. 31, 2014	May. 31, 2013
Details
Warrants issued with antidilution protection			2,715,000
Warrants issued with antidilution protection, value			$ 1,004,550
Warrants issued with antidilution protection, value reduction	$ 108,600	$ 407,250