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Warrants (Details) - USD ($)
12 Months Ended
Jul. 31, 2019
Jul. 31, 2018
Jul. 31, 2017
Warrants $ 500,000 $ 3,730,000  
Exercise price $ .15 $ .15 $ .10
Term 2 years    
Volatility 323.00%    
Risk free interest rate 2.61%    
Fair value $ 25,205 $ 70,858  
Minimum      
Term   1 year  
Volatility   275.95%  
Risk free interest rate   1.67%  
Maximum      
Term   2 years  
Volatility   361.50%  
Risk free interest rate   2.67%