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INCOME TAXES (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2018 | Mar. 31, 2018 | Sep. 30, 2018 | Sep. 30, 2017 | Dec. 31, 2017
Operating Loss Carryforwards [Line Items] |  |  |  |  |
Deferred income taxes |  |  | $ 79 | $ 384 |
Deferred tax liabilities, goodwill | $ 1,230 |  | 1,230 |  |
Federal net operating loss carryforwards |  |  |  |  | $ 101,200
Tax credit carryforward amount | 3,804 |  | 3,804 |  |
Refundable amount | 1,902 |  | 1,902 |  |
Current income tax expense (benefit) | (475) |  | (1,426) |  |
Deferred income tax provisions | 475 |  | 1,426 |  |
Goodwill |  |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |  |
Deferred income taxes | $ 406 | $ (1,635) | $ (1,230) |  |

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