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RELATED PARTY TRANSACTIONS - Additional information (Details) - USD ($)
3 Months Ended 9 Months Ended
Nov. 24, 2020
Nov. 20, 2020
Jun. 19, 2020
Mar. 31, 2021
Mar. 31, 2020
Mar. 31, 2021
Jun. 30, 2020
Related Party Transaction [Line Items]              
Repayment of promissory note - related party         $ 0 $ 175,000  
Administrative Support Agreement              
Related Party Transaction [Line Items]              
Expenses per month   $ 10,000          
Expenses incurred       $ 30,000   40,000  
Administrative Support Agreement | Accrued expenses              
Related Party Transaction [Line Items]              
Expenses incurred           40,000  
Promissory Note with Related Party              
Related Party Transaction [Line Items]              
Outstanding borrowings     $ 175,000        
Period To Repay Debt After Receiving Written Notice Of Demand     15 days        
Repayment of promissory note - related party $ 175,000            
Related Party Loans              
Related Party Transaction [Line Items]              
Outstanding borrowings       0   0 $ 0
Maximum loans convertible into warrants       $ 500,000   $ 500,000  
Price of warrants (in dollars per share)       $ 0.90   $ 0.90