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Income Taxes - Components of Income Tax Expense (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Current:      
Federal $ (765) $ (2,536) $ 1,354
State (235) (703) (217)
Total current income tax (expense) benefit (1,000) (3,239) 1,137
Deferred:      
Federal (357) (80) (461)
State (407) 887 (154)
Total deferred income tax (expense) benefit (764) 807 (615)
Total income tax (expense) benefit $ (1,764) $ (2,432) $ 522