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Derivative Liabilities (Details Narrative) - USD ($)
12 Months Ended
Jul. 31, 2017
Jul. 31, 2016
Derivative warrants weighted average remaining life 1 year 10 months  
Recognition of gain (loss) $ 193,408 $ 50,746
Fair value of derivative liability 0 2,048,846
Additional recognition of gain, “Change in fair value of derivative liabilities”   314,569
Series G Convertible Preferred Stock    
Fair value of derivative liability $ 0 $ 193,408