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ACCOUNTING POLICIES (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Jun. 30, 2017
Accounting Policies [Line Items]      
Income tax expense (benefit) $ (468) $ (115)  
Accounting standards update 2016-09      
Accounting Policies [Line Items]      
Income tax expense (benefit) $ 65    
Cumulative excess tax benefits     $ 67