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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES, Advertising Costs, Research, Development Costs and Realization of Long-lived Assets (Details) - USD ($)
$ in Millions
12 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2015
Advertising Costs [Abstract]      
Advertising costs $ 0.8 $ 0.6 $ 0.6
Realization of Long-lived Assets [Abstract]      
Impairment losses recognized 0.0 0.0 0.0
Maximum [Member]      
Research and Development Expenses [Line Items]      
Research and development expenses $ 0.1 $ 0.1 $ 0.1