Consolidated Statements of Shareholders' Equity - 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, 2020	$ 134,445			$ 2,328		$ 22,430		$ 106,644			$ 5,649		$ (2,606)
Balance (in shares) at Dec. 31, 2020				3,556,533
Net income	16,492							16,492
Other comprehensive loss, net of tax	(9,389)										(9,389)
Cash dividends declared	(4,973)							(4,973)
Treasury stock purchase	(1,356)												(1,356)
Treasury stock purchase (in shares)				(38,017)
Stock issued in connection with dividend reinvestment and stock purchase plan	841			$ 15		826
Stock issued in connection with dividend reinvestment and stock purchase plan (in shares)				23,690
Stock issued for employee stock purchase plan	$ 145			$ 3		142
Stock issued for employee stock purchase plan (in shares)	4,906			4,906
Stock issued for options exercised	$ 187			$ 4		183
Stock issued for options exercised (in shares)	19,025			6,517
Stock-based compensation expense	$ 102					102
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	15,921							15,921
Other comprehensive loss, net of tax	(77,387)										(77,387)
Cash dividends declared	(5,133)							(5,133)
Treasury stock purchase	(75)												(75)
Treasury stock purchase (in shares)				(2,000)
Stock issued in connection with dividend reinvestment and stock purchase plan	917			$ 20		897
Stock issued in connection with dividend reinvestment and stock purchase plan (in shares)				31,531
Stock issued for employee stock purchase plan	$ 136			$ 3		133
Stock issued for employee stock purchase plan (in shares)	5,102			5,102
Stock-based compensation expense	$ 85					85
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]	us-gaap:AccountingStandardsUpdate201613Member
Net income	$ 9,483							9,483
Other comprehensive loss, net of tax	13,190										13,190
Cash dividends declared	(5,346)							(5,346)
Stock issued in connection with dividend reinvestment and stock purchase plan	1,363			$ 36		1,327
Stock issued in connection with dividend reinvestment and stock purchase plan (in shares)				56,622
Stock issued for employee stock purchase plan	$ 134			$ 4		130
Stock issued for employee stock purchase plan (in shares)	6,630			6,630
Stock issued for Non-Employee Director Compensation				$ 1		(1)
Stock issued for Non-Employee Director Compensation (in shares)				1,740
Stock-based compensation expense	$ 185					185
Balance at Dec. 31, 2023	$ 90,824			$ 2,414		$ 26,439		$ 133,945			$ (67,937)		$ (4,037)
Balance (in shares) at Dec. 31, 2023	3,653,254			3,653,254