Other Comprehensive (Loss) Income (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2019	Mar. 31, 2018
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning Balance	$ 138,488	$ 118,105
Other comprehensive income before reclassification	(62)	(32)
Less amounts reclassified from accumulated other comprehensive loss	(12)	134
Total other comprehensive income, net	(50)	(166)
Ending Balance	143,717	123,104
Net unrealized gains on securities
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning Balance	(721)	(335)
Other comprehensive income before reclassification	240	(581)
Less amounts reclassified from accumulated other comprehensive loss	79	0
Total other comprehensive income, net	161	(581)
Ending Balance	(560)	(916)
Adjustments related to defined benefit plan
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning Balance	(431)	(341)
Other comprehensive income before reclassification	0	0
Less amounts reclassified from accumulated other comprehensive loss	(91)	134
Total other comprehensive income, net	91	(134)
Ending Balance	(340)	(475)
Net unrealized (losses) gains from cash flow hedges
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning Balance	1,030	882
Other comprehensive income before reclassification	(302)	549
Less amounts reclassified from accumulated other comprehensive loss	0	0
Total other comprehensive income, net	(302)	549
Ending Balance	728	1,431
Accumulated other comprehensive (loss) income
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning Balance	(157)	206
Total other comprehensive income, net	(50)	(166)
Ending Balance	(207)	30
Accounting Standards Update 2016-01 And 2018-02
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Reclassification to unappropriated retained earnings	35
Accounting Standards Update 2016-01 And 2018-02 \| Accumulated other comprehensive (loss) income
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning Balance	(122)
Ending Balance	$ (172)	$ 40

Amount after tax, before reclassification adjustments of other comprehensive income (loss).

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