General form of registration statement for all companies including face-amount certificate companies

Common Shares and Warrants (Details 2)

v3.20.1
Common Shares and Warrants (Details 2) - $ / shares
6 Months Ended 12 Months Ended
Feb. 29, 2020
Aug. 31, 2019
Aug. 31, 2018
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Expected life 5 years    
Dividend yield 0.00%    
Minimum      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Expected volatility 95.00%    
Risk-free interest rate 1.45%    
Maximum      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Expected volatility 96.00%    
Risk-free interest rate 1.68%    
Warrant      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Expected volatility 91.00%    
Risk-free interest rate 2.87%    
Expected life 2 years    
Dividend yield 0.00% 0.00% 0.00%
Warrant | Minimum      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Expected volatility   1.00% 100.00%
Risk-free interest rate   2.31% 1.21%
Expected life   1 day 1 year 2 months 15 days
Estimated fair value per warrant $ 0.28   $ 0.40
Warrant | Maximum      
Fair Value Measurement Inputs and Valuation Techniques [Line Items]      
Expected volatility   117.00% 154.00%
Risk-free interest rate   2.87% 2.60%
Expected life   2 years 3 years
Estimated fair value per warrant $ 0.43 $ 0.57 $ 1.48