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INCOME TAXES (Details) - USD ($) $ in Thousands | 3 Months Ended |
--- | --- | ---
Mar. 31, 2018 | Mar. 31, 2017 | Dec. 31, 2017
Operating Loss Carryforwards [Line Items] |  |  |
Deferred income taxes | $ (1,187) | $ (74) |
Deferred tax liabilities, goodwill | 1,635 |  |
Federal net operating loss carryforwards |  |  | $ 101,200
Tax credit carryforward amount | 3,804 |  |
Refundable amount | 1,902 |  |
Current income tax expense (benefit) | 475 |  |
Deferred income taxes | 475 |  |
Goodwill |  |  |
Operating Loss Carryforwards [Line Items] |  |  |
Deferred income taxes | $ (1,635) |  |

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