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Derivative Liabilities (Details Narrative 2) - USD ($)
9 Months Ended 12 Months Ended 24 Months Ended
Apr. 30, 2015
Apr. 30, 2014
Jul. 31, 2014
Jul. 31, 2013
Jul. 31, 2012
Jul. 31, 2014
Increase (Decrease) in fair value of derivative warrant liability $ 53,597 $ 298,370 $ (3,362,497) $ (3,279,650)   $ (3,362,497)
Fair value of derivative liability $ 2,689,240   2,635,643     2,635,643
Additional investment rights     $ 237,566   $ 841,333  
Additional paid in capital   237,566        
Additional recognition of gain, “Change in fair value of derivative liabilities”   $ 1,062,448        
Issuing Additional Warrants            
Derivative warrants weighted average remaining life 2 years 6 months   3 years 5 months 18 days      
Increase (Decrease) in fair value of derivative warrant liability $ 53,597          
Additional investment rights 24,109          
Additional recognition of gain, “Change in fair value of derivative liabilities” 719,088          
Issuing Additiona Investment Rights            
Fair value of derivative liability $ 0   $ 719,088     $ 719,088