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Income Taxes - Schedule of Components of Income Tax Expense (Benefit) (Details) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Dec. 31, 2017
Dec. 31, 2017
Dec. 31, 2016
Income Tax Disclosure [Abstract]      
Federal income tax (benefit) expense - current   $ (780) $ 9
Federal income tax benefit - deferred   (778) (2,657)
State income tax expense - current   163 59
State income tax expense (benefit) - deferred   110 (405)
Total income tax (benefit) expense $ (1,695) $ (1,285) $ (2,994)