Accumulated Other Comprehensive Income (Loss) - Schedule of Components of AOCI (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning Balance	$ 208,717	$ 201,380	$ 197,835
Net unrealized gains (losses) on securities available for sale, net of tax	(2,464)	23	(3,729)
Tax effect	(745)	12	(2,007)
Reclassification adjustment for realized gains on securities, net of tax	(63)	(528)	(543)
Tax effect	(18)	(284)	(293)
Net unrealized losses on cash flow hedges, net of tax	(624)
Tax effect	(180)
Change in unfunded pension liability, net of tax	1,042	(152)	108
Tax effect	249	(82)	58
Reclass stranded tax effects from tax rate change	(650)
Ending Balance	222,542	208,717	201,380
Net Unrealized Gains (Losses) on Securities
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning Balance	(796)	(150)	4,122
Net unrealized gains (losses) on securities available for sale, net of tax	(2,464)	23	(3,729)
Reclassification adjustment for realized gains on securities, net of tax	(63)	(528)	(543)
Reclass stranded tax effects from tax rate change	(650)	(141)
Ending Balance	(3,973)	(796)	(150)
Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Net unrealized losses on cash flow hedges, net of tax	(624)
Ending Balance	(624)
Adjustments Related to Pension Benefits
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning Balance	(2,280)	(1,724)	(1,832)
Net unrealized losses on cash flow hedges, net of tax	0
Change in unfunded pension liability, net of tax	1,042	(152)	108
Reclass stranded tax effects from tax rate change	0	(404)
Ending Balance	(1,238)	(2,280)	(1,724)
Accumulated Other Comprehensive Income (Loss)
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning Balance	(3,076)	(1,874)	2,290
Reclass stranded tax effects from tax rate change		(545)
Ending Balance	$ (5,835)	$ (3,076)	$ (1,874)