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Derivative Liabilities (Details Narrative) - USD ($)
9 Months Ended
Apr. 30, 2017
Apr. 30, 2016
Jul. 31, 2016
Derivative warrants weighted average remaining life 1 year 10 months    
Recognition of gain (loss) $ 516,509 $ 30,684  
Fair value of derivative liability 0   $ 2,048,846
Additional recognition of gain, “Change in fair value of derivative liabilities” 16,231 $ 275,604  
Series G Convertible Preferred Stock      
Fair value of derivative liability $ 0   $ 193,408