Accumulated Other Comprehensive Income/(Loss) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Activity in accumulated other comprehensive income (loss) [Roll Forward]
Balance	$ 100,044	$ 92,298	$ 85,849
Current period other comprehensive income (loss), net of tax	(639)	(1,448)	(1,855)
Tax rate change reclassification		(599)
Balance	112,461	100,044	92,298
Accumulated Other Comprehensive Income/(Loss) [Member]
Activity in accumulated other comprehensive income (loss) [Roll Forward]
Balance	(4,397)	(2,350)	(495)
Current period other comprehensive income (loss), net of tax	(639)	(1,448)	(1,855)
Balance	(5,036)	(4,397)	(2,350)
Unrealized Gains (Losses) on Securities [Member]
Activity in accumulated other comprehensive income (loss) [Roll Forward]
Balance	(2,997)	(1,678)	150
Current period other comprehensive income (loss), net of tax	(870)	(846)	(1,828)
Tax rate change reclassification		(473)
Balance	(3,867)	(2,997)	(1,678)
Officers' Retirement Plan [Member]
Activity in accumulated other comprehensive income (loss) [Roll Forward]
Balance	(1,403)	(686)	(662)
Current period other comprehensive income (loss), net of tax	205	(591)	(24)
Tax rate change reclassification		(126)
Balance	(1,198)	(1,403)	(686)
Directors' Retirement Plan [Member]
Activity in accumulated other comprehensive income (loss) [Roll Forward]
Balance	3	14	17
Current period other comprehensive income (loss), net of tax	26	(11)	(3)
Tax rate change reclassification		0
Balance	$ 29	$ 3	$ 14