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BASIS OF PRESENTATION (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2018
Dec. 31, 2017
Accounting Policies [Abstract]        
Gain on disposal of equipment $ 3 $ 7 $ 15
Unrealized gain (loss) from marketable equity investments       $ 21