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LOSS PER SHARE CALCULATION - Additional Information (Details) - shares
12 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2017
Earnings Per Share [Abstract]      
Antidilutive shares excluded from the calculation of diluted loss per shares (in shares) 1,297,073 1,134,845 1,138,108