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Income Taxes (Income Tax Expense) (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Income Taxes [Abstract]      
Federal $ 13,846 $ 8,720 $ 7,546
State 82 21 (75)
Total current tax expense 13,928 8,741 7,471
Federal (2,175) 1,440 2,538
State 457 358 (384)
Total deferred tax (benefit) expense (1,718) 1,798 2,154
Total income tax expense $ 12,210 $ 10,539 $ 9,625