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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

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