Accumulated Other Comprehensive Income (Loss) - Schedule of Components of AOCI (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning Balance	$ 222,542	$ 208,717	$ 201,380
Net unrealized gains (losses) on securities available for sale, net of tax	7,090	(2,464)	23
Reclassification adjustment for realized gains on securities, net of tax	(215)	(63)	(528)
Net unrealized losses on cash flow hedges, net of tax, $(394)	(1,460)
Change in unfunded pension liability, net of tax	5,352	(2,109)	(657)
Reclassification of stranded tax effects from tax rate change			(545)
Ending Balance	320,258	222,542	208,717
Net unrealized losses on cash flow hedges, tax	(394)	(180)
Reclassification adjustment for realized gains on securities, tax	(59)	(18)	(284)
Net unrealized gains on securities available for sale, tax	2,005	(745)	12
Change in unfunded pension liability, tax	(1)	249	(82)
Net Unrealized Gains (Losses) on Securities
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning Balance	(3,973)	(796)	(150)
Net unrealized gains (losses) on securities available for sale, net of tax	7,090	(2,464)	23
Reclassification adjustment for realized gains on securities, net of tax	(215)	(63)	(528)
Reclassification for ASU 2016-01 adoption			(650)
Reclassification of stranded tax effects from tax rate change			(141)
Ending Balance	2,902	(3,973)	(796)
Unrealized Losses on Cash Flow Hedges
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning Balance		0	0
Net unrealized losses on cash flow hedges, net of tax, $(180)		(624)
Ending Balance			0
Unrealized Losses on Cash Flow Hedges
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning Balance	(624)
Net unrealized losses on cash flow hedges, net of tax, $(394)	(1,460)
Ending Balance	(2,084)	(624)
Adjustments Related to Pension Benefits
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning Balance	(1,238)	(2,280)	(1,724)
Change in unfunded pension liability, net of tax	63	1,042	(152)
Reclassification of stranded tax effects from tax rate change			(404)
Ending Balance	(1,301)	(1,238)	(2,280)
Accumulated Other Comprehensive Income (Loss)
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning Balance	(5,835)	(3,076)	(1,874)
Net unrealized losses on cash flow hedges, net of tax, $(180)		(624)
Change in unfunded pension liability, net of tax	5,352	(2,109)	(657)
Reclassification for ASU 2016-01 adoption			(650)
Reclassification of stranded tax effects from tax rate change			(545)
Ending Balance	$ (483)	$ (5,835)	$ (3,076)