Consolidated Statement of Shareholders' Equity (Unaudited) - USD ($) $ in Thousands	Total	Cumulative Effect, Period of Adoption, Adjustment [Member]	Cumulative Effect, Period of Adoption, Adjusted Balance [Member]	Common Stock [Member]	Common Stock [Member] Cumulative Effect, Period of Adoption, Adjusted Balance [Member]	Additional Paid-in Capital [Member]	Additional Paid-in Capital [Member] Cumulative Effect, Period of Adoption, Adjusted Balance [Member]	Retained Earnings [Member]	Retained Earnings [Member] Cumulative Effect, Period of Adoption, Adjustment [Member]	Retained Earnings [Member] Cumulative Effect, Period of Adoption, Adjusted Balance [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Accumulated Other Comprehensive Income (Loss) [Member] Cumulative Effect, Period of Adoption, Adjusted Balance [Member]	Treasury Stock [Member]	Treasury Stock [Member] Cumulative Effect, Period of Adoption, Adjusted Balance [Member]
Balance at Dec. 31, 2021	$ 136,494			$ 2,350		$ 23,683		$ 118,163			$ (3,740)		$ (3,962)
Balance (in shares) at Dec. 31, 2021				3,553,629
Net income	3,710							3,710
Other comprehensive income (loss), net of tax	(36,601)										(36,601)
Cash dividends declared	(1,279)							(1,279)
Stock issued in connection with dividend reinvestment and stock purchase plan	227			$ 4		223
Stock issued in connection with dividend reinvestment and stock purchase plan (in shares)				6,177
Stock-based compensation expense	22					22
Treasury stock purchase	(75)												(75)
Treasury stock purchase (in shares)				(2,000)
Balance at Mar. 31, 2022	102,498			$ 2,354		23,928		120,594			(40,341)		(4,037)
Balance (in shares) at Mar. 31, 2022				3,557,806
Balance at Dec. 31, 2022	$ 70,958	$ 857	$ 71,815	$ 2,373	$ 2,373	24,798	$ 24,798	128,951	$ 857	$ 129,808	(81,127)	$ (81,127)	(4,037)	$ (4,037)
Balance (in shares) at Dec. 31, 2022	3,588,262			3,588,262
Accounting Standards Update [Extensible Enumeration]	Accounting Standards Update 2016-13 [Member]
Net income	$ 4,118							4,118
Other comprehensive income (loss), net of tax	9,013										9,013
Cash dividends declared	(1,328)							(1,328)
Stock issued in connection with dividend reinvestment and stock purchase plan	236			$ 6		230
Stock issued in connection with dividend reinvestment and stock purchase plan (in shares)				9,083
Stock-based compensation expense	20					20
Balance at Mar. 31, 2023	$ 83,874			$ 2,379		$ 25,048		$ 132,598			$ (72,114)		$ (4,037)
Balance (in shares) at Mar. 31, 2023	3,597,345			3,597,345