Consolidated Statements of Changes In Shareholders' Equity - USD ($) $ in Thousands	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]
Balance at Dec. 31, 2018	$ 223,209	$ 8,460	$ 177,565	$ 39,562	$ (2,378)
Impact of adoption of new accounting standard (ASU 2016-01 [Member]) at Dec. 31, 2018	316			316
Balance at Dec. 31, 2018	223,525	8,460	177,565	39,878	(2,378)
Net income	4,077			4,077
Total other comprehensive (loss) income, net of taxes	1,807				1,807
Common stock dividends declared	(2,113)			(2,113)
Employee Stock Purchase Plan	28	1	27
Director Stock Purchase Plan	33	1	32
Restricted stock activity	80		80
Balance at Mar. 31, 2019	227,437	8,462	177,704	41,842	(571)
Balance at Dec. 31, 2019	237,874	8,481	178,159	50,891	343
Net income	3,818			3,818
Total other comprehensive (loss) income, net of taxes	(395)				(395)
Common stock dividends declared	(1,950)			(1,950)
Employee Stock Purchase Plan	33	1	32
Director Stock Purchase Plan	35	2	33
Restricted stock activity	96		96
Balance at Mar. 31, 2020	$ 239,511	$ 8,484	$ 178,320	$ 52,759	$ (52)