Note 9. Warrant Liability (Details) - USD ($)	12 Months Ended
	May 31, 2015	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