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ACCOUNTING POLICIES (Other Recognition and Disclosure) (Details) - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2018 | Dec. 31, 2017
Other Recognition and Disclosure |  |
Deferred revenue | $ 0.5 | $ 0.6
Revenue, Practical Expedient, Incremental Cost of Obtaining Contract | true |
Revenue, Practical Expedient, Remaining Performance Obligation | true |

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