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LOSS PER SHARE CALCULATION - Additional Information (Details) - shares
12 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2019
Earnings Per Share [Abstract]      
Antidilutive shares excluded from the calculation of diluted loss per shares (in shares) 4,139,745 2,779,222 1,297,073