Annual report pursuant to Section 13 and 15(d)

Senior Convertible Notes Payable - Assumptions to conversion features and exchange warrants (Details)

v3.21.2
Senior Convertible Notes Payable - Assumptions to conversion features and exchange warrants (Details)
12 Months Ended
Aug. 31, 2021
$ / shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Risk free rate 0.47%
Volatility 134.00%
Minimum [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Life of instrument in years 5 years
Maximum  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Life of instrument in years 7 years
March 2020 Conversion Feature  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Market Price Per Share $ 6.68
Dividend yield 0.00%
March 2020 Conversion Feature | Minimum [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Risk free rate 0.08%
Market Price Per Share $ 6.63
Life of instrument in years 5 months 19 days
Volatility 117.00%
March 2020 Conversion Feature | Maximum  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Risk free rate 0.17%
Market Price Per Share $ 6.68
Life of instrument in years 1 year 1 month 24 days
Volatility 139.00%
March 2020 Exchange Warrants  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Risk free rate 0.038%
Life of instrument in years 5 years 6 months
Volatility 117.00%
March 2020 Exchange Warrants | Minimum [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Market Price Per Share $ 6.63
March 2020 Exchange Warrants | Maximum  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Market Price Per Share $ 6.68