Annual report pursuant to Section 13 and 15(d)

Income Taxes - Schedule of Components of Income Tax (Details)

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Income Taxes - Schedule of Components of Income Tax (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Current:      
Federal $ (426) $ 0 $ 0
State 2,559 3,008 2,304
Total current tax expense 2,133 3,008 2,304
Deferred:      
Federal (4,593) 4,000 3,895
State 567 140 91
Total deferred tax expense (4,026) 4,140 3,986
Total Income tax expense (benefit) $ (1,893) $ 7,148 $ 6,290