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INCOME TAXES - NARRATIVE (Details) - USD ($) | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2019 | Sep. 30, 2018 | Sep. 30, 2019 | Sep. 30, 2018
Income Tax Disclosure [Abstract] |  |  |  |
Income tax expense (benefit) | $ 171,000 | $ (2,408,000) | $ 123,000 | $ (2,384,000)
Effective income tax rate, percent | (4.10%) | 84.60% | (0.90%) | 27.90%
Accrued interest and penalties | $ 197,000 |  | $ 197,000 |
Interest and penalties included in income tax expense | 146,000 |  | 197,000 |
Uncertain tax positions that would impact effective tax rate | $ 1,510,000 |  | $ 1,510,000 |

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