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Derivative Liabilities - Derivative warrant liability (Details) - USD ($)
3 Months Ended
Oct. 31, 2015
Jul. 31, 2015
Notes to Financial Statements    
Balance - Derivative warrant liability Value $ 2,363,415  
Increase (Decrease) in fair value of derivative warrant liability 161,900  
Balance - Derivative warrant liability Value $ 2,525,315  
No. of Warrants - Derivative warrant liability 512,911,037 512,911,037