Debt (Details 1) - Black Scholes Valuation [Member]	3 Months Ended
	Oct. 31, 2019
Expected dividend yield	0.00%
Minimum [Member]
Expected stock price volatility	83.28%
Risk-free interest rate	1.52%
Expected term	4 days
Maximum [Member]
Expected stock price volatility	268.02%
Risk-free interest rate	2.67%
Expected term	3 years