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Stock Options (Detail Textuals) - $ / shares
3 Months Ended
Nov. 30, 2020
Nov. 30, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Exercise price   $ 11.66
Term of expiration 5 years  
2019 Equity Incentive Plan | Directors Officers Employees And Consultants    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Stock options available for grant 261,290  
2014 Stock Option Plan | Directors Officers Employees And Consultants    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Stock options available for grant 62,917