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Summary of Significant Accounting Policies (Details 1) - USD ($)
$ in Thousands
Jul. 31, 2019
Jul. 31, 2018
Convertible promissory notes derivative liability $ 927,171 $ 632,268
Quoted prices in active markets for identical liabilities (Level 1) [Member]    
Convertible promissory notes derivative liability
Significant other observable inputs (Level 2) [Member]    
Convertible promissory notes derivative liability
Significant unobservable inputs (Level 3) [Member]    
Convertible promissory notes derivative liability $ 927,171 $ 632,268