Quarterly report pursuant to Section 13 or 15(d)

Stock Options (Detail Textuals)

v3.19.2
Stock Options (Detail Textuals) - $ / shares
9 Months Ended
May 31, 2019
May 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Stock options available for grant   200,000
Exercise price   $ 0.83
Term of expiration 5 years  
Term of options vesting 3 years  
Directors Officers Employees And Consultants    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Stock options available for grant 7,838,713  
Exercise price   $ 1.53
Maximum number of common shares purchased   1,725,000
2007 Equity incentive plan | Employees And Directors    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Stock options available for grant 412,500  
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 2,157,500  
2010 Stock Option Plan | Officers And Employees    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Stock options available for grant 1,512,500