Derivative Liabilities (Details Narrative) (USD $)	12 Months Ended			213 Months Ended
	Jul. 31, 2013	Jul. 31, 2012	Jul. 31, 2011	Jul. 31, 2013
Recognition of loss due to derivative liability	$ (3,140,259)	$ (1,081,440)	$ 2,220,916	$ (3,856,236)	[1]
Additional investment rights		841,333
Issuing Additional Warrants
Derivative warrants weighted average remaining life	3 years 5 months 15 days
Recognition of loss due to derivative liability	3,148,782	1,081,440
Fair Value of Warrants
Fair value of derivative liability	5,234,293	4,081,627		5,234,293
Additional investment rights	1,256,160
Recognition of Gain
Additional investment rights	$ 8,523

[1] Includes $5,981,403 as adjustment related to the adoption of FASB ASC Topic 815 in "Cumulative from November 2, 1995 (Date of Inception) to July 31, 2013" column. See Note 10 - Derivative Liabilities.