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Schedule of Components of Income Tax Provision (Benefit) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2015
Current: |  |  |  |
Federal | $ (91) |  | $ 247 |
State | (5) |  |  |
Total current tax benefit (provision) | (96) |  | 247 |
Deferred: |  |  |  |
Federal | (7,456) | $ (4,091) | (8,939) |
State | (369) | (234) | (1,277) |
Total deferred tax benefit | (7,825) | (4,325) | (10,216) |
Income tax benefit | $ (7,921) | $ (4,325) | $ (9,969) | $ (9,969)

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