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SHARE-BASED COMPENSATION - Restricted Stock - General Information (Details) - Unvested restricted stock awards - USD ($)
$ in Millions
12 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Restricted stock    
Fair value of restricted shares granted $ 0.6  
Granted (in shares) 401,146  
Outstanding (in shares) 401,146 0