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

Stock Options (Details 2)

v3.20.1
Stock Options (Details 2) - $ / shares
6 Months Ended 12 Months Ended
Feb. 29, 2020
Aug. 31, 2019
Aug. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Expected life 5 years    
Dividend yield 0.00%    
Minimum      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Black-Scholes option 95.00%    
Risk-free interest rate 1.45%    
Estimated fair value per option $ 0.30    
Maximum      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Black-Scholes option 96.00%    
Risk-free interest rate 1.68%    
Estimated fair value per option $ 0.39    
Black-Scholes option      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Expected life   5 years 5 years
Dividend yield   0.00% 0.00%
Black-Scholes option | Minimum      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Black-Scholes option   100.00% 127.00%
Risk-free interest rate   1.42% 2.13%
Estimated fair value per option   $ 0.60 $ 0.70
Black-Scholes option | Maximum      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Black-Scholes option   144.00% 131.00%
Risk-free interest rate   2.89% 2.74%
Estimated fair value per option   $ 1.07 $ 1.73