Quarterly report pursuant to Section 13 or 15(d)

WARRANT LIABILITY (Details)

v3.20.2
WARRANT LIABILITY (Details) - Derivative Warrant Liability
3 Months Ended 9 Months Ended
May 31, 2020
USD ($)
May 31, 2019
USD ($)
May 31, 2020
USD ($)
May 31, 2019
USD ($)
Aug. 31, 2019
USD ($)
Jun. 30, 2018
USD ($)
$ / shares
shares
Credit Derivatives [Line Items]            
Warrants issued | shares           3,750
Warrants exercise price | $ / shares           $ 5.28
Term of warrants           5 years
Estimated fair value of outstanding warrant liabilities $ 2,009,000   $ 2,009,000   $ 5,444,000 $ 15,350,000
Changes in derivative liability $ 1,160,000 $ (6,254,000) $ (3,435,000) $ (7,309,000)    
Stock price            
Credit Derivatives [Line Items]            
Measurement input 1.19   1.19      
Volatility            
Credit Derivatives [Line Items]            
Measurement input 1.195   1.195      
Risk-free rate            
Credit Derivatives [Line Items]            
Measurement input 0.22   0.22      
Annual dividend yield            
Credit Derivatives [Line Items]            
Measurement input 0   0      
Expected life            
Credit Derivatives [Line Items]            
Term of warrants 3 years   3 years