Consolidated Statements Of Changes In Shareholders' Equity - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Treasury Stock [Member]	Total
Balance at Dec. 31, 2020	$ 4,711	$ 42,589	$ 102,520	$ 3,190	$ (7,834)	$ 145,176
Balance, shares at Dec. 31, 2020	4,389,355
Net income			4,830			4,830
Other comprehensive income				(8,356)		(8,356)
Cash dividends declared			(1,318)			(1,318)
Acquisition of treasury stock					$ (13)	(13)
Acquisition of treasury stock, shares					(474)
Treasury shares issued under dividend reinvestment plan		40			$ 285	325
Treasury shares issued under dividend reinvestment plan, shares	11,682
Stock Compensation Plans:
Treasury shares issued		(164)			171	7
Treasury shares issued, shares	7,020
Compensation expense		48				48
Balance at Mar. 31, 2021	$ 4,711	42,513	106,032	(5,166)	(7,391)	140,699
Balance, shares at Mar. 31, 2021	4,407,583
Balance at Dec. 31, 2021	$ 4,711	43,085	116,612	(547)	(6,796)	$ 157,065
Balance, shares at Dec. 31, 2021	4,441,443					4,441,443
Net income			3,012			$ 3,012
Other comprehensive income				(21,897)		(21,897)
Cash dividends declared			(1,421)			(1,421)
Acquisition of treasury stock					$ (20)	(20)
Acquisition of treasury stock, shares					(609)
Treasury shares issued under dividend reinvestment plan		78			$ 236	314
Treasury shares issued under dividend reinvestment plan, shares	9,379
Stock Compensation Plans:
Treasury shares issued		(156)			169	13
Treasury shares issued, shares	6,705
Compensation expense		70				70
Balance at Mar. 31, 2022	$ 4,711	$ 43,077	$ 118,203	$ (22,444)	$ (6,411)	$ 137,136
Balance, shares at Mar. 31, 2022	4,456,918					4,456,918