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ACCOUNTING POLICIES (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Jun. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
Jun. 30, 2018
New Accounting Pronouncements or Change in Accounting Principle [Line Items]        
Excess tax benefits   $ 18 $ 28  
Accounting standards update 2016-09        
New Accounting Pronouncements or Change in Accounting Principle [Line Items]        
Excess tax benefits $ 67     $ 31