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INFORMATION ABOUT COMPONENTS OF CONSOLIDATED STATEMENTS OF FINANCIAL POSITION - Private Warrants (Details)
 12 Months Ended
Aug. 24, 2020
USD ($)
$ / shares
shares
Jun. 30, 2020
USD ($)
$ / shares
Jun. 30, 2019
USD ($)
$ / shares
Mar. 14, 2019
USD ($)
$ / shares
INFORMATION ABOUT COMPONENTS OF EQUITY        
Private Warrants, Non-Current | $   $ 1,686,643    
Payments For Redemption Of Warrants | $ $ 915,796      
Exchange of warrants        
INFORMATION ABOUT COMPONENTS OF EQUITY        
Number of outstanding warrants exchanged | shares 24,200,000      
Number Of Shares Issued Upon Exchange Of Each Warrant | shares 0.12      
Cash Consideration For Exchange Of Each Warrant | $ / shares $ 0.45      
Number Of Warrants Validly Tendered But Not Properly Withdrawn | shares 21,938,774      
Aggregate Cash Consideration For Exchange Of Warrants | $ $ 115,062      
Number Of Warrants Redeemed | shares 2,261,226      
Warrants Redeemed, Offering Price Per Warrant | $ / shares $ 0.405      
Aggregate Number Of Shares Issued Upon Exchange Of Warrants | shares 2,601,954      
Private warrants.        
INFORMATION ABOUT COMPONENTS OF EQUITY        
Financial liabilities, at fair value | $   1,700,000 $ 2,800,000 $ 3,400,000
Gain recognized from change in fair value | $ $ 6,200,000 $ 1,200,000 $ 600,000  
Private warrants. | Volatility        
INFORMATION ABOUT COMPONENTS OF EQUITY        
Assumption used in estimating fair value       32
Private warrants. | Share price        
INFORMATION ABOUT COMPONENTS OF EQUITY        
Assumption used in estimating fair value | $ / shares   6.06 5.30 5.35
Private warrants. | Risk-free rate        
INFORMATION ABOUT COMPONENTS OF EQUITY        
Assumption used in estimating fair value   0.29 1.7631 2.43