SUPPLEMENTAL INFORMATION OF CASH FLOWS (Details 1) (USD $)	12 Months Ended
	May 31, 2013	May 31, 2012
Non-cash investing and financing activities:
Preferred dividend accrual	$ 326,781	$ 242,192
Equipment purchased through capital lease		563,026
Advances from related party applied against receivables from the related party		625,180
Supplemental information:
Interest paid	$ 423,530	$ 516,059