Income Taxes Schedule of Effective Income Tax Rate Reconciliation (Details) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Dec. 31, 2016
Sep. 30, 2016
Jun. 30, 2016
Mar. 31, 2016
Dec. 31, 2015
Sep. 30, 2015
Jun. 30, 2015
Mar. 31, 2015
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Income Tax Disclosure [Abstract]                      
Income before income tax expense $ 5,167 $ (355) $ 5,344 $ 6,909 $ 6,268 $ 6,441 $ 5,820 $ 6,362 $ 17,065 $ 24,891 $ 21,222
Income tax reconciliation, tax expense at statutory federal rate of 35%, 34.42%, and 34% applied to income before income tax expense, respectively                 5,973 8,568 7,305
Income tax reconciliation, state income tax, net of federal effect                 206 968 1,000
Income tax reconciliation, tax exempt income tax-exempt security and loan income, net of TEFRA adjustments                 (1,114) (879) (736)
Income tax reconciliation, tax exempt income bank-owned life insurance                 (341) (330) (296)
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Amount                 0 0 124
Effective Income Tax Rate Reconciliation, Tax Credit, Amount                 (2,696) (246) (375)
Income tax reconciliation, other adjustments                 128 296 61
Total income tax expense $ (1,199) $ 3,020 $ (1,621) $ (2,356) $ (2,185) $ (2,060) $ (1,962) $ (2,170) $ 2,156 $ 8,377 $ 7,083
Effective tax rate                 12.63% 33.65% 33.38%