Derivative Liability (Tables)

12 Months Ended

Jul. 31, 2012

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of Derivative Instruments [Table Text Block]

	June 26, 2012		July 31, 2012
Volatility	85.0	%	85.0	%
Risk-free interest rate	0.53	%	0.53	%
Dividend yield	0.0	%	0.0	%
Expected life	0.50 - 4.5 years		0.42 - 4.4 years