Consolidated Statements of Changes in Stockholders' Equity - USD ($) $ in Thousands	Common Stock [Member]	Common Stock [Member] Cumulative Effect, Period of Adoption, Adjustment [Member]	Additional Paid-in Capital [Member]	Additional Paid-in Capital [Member] Cumulative Effect, Period of Adoption, Adjustment [Member]	Retained Earnings [Member]	Retained Earnings [Member] Cumulative Effect, Period of Adoption, Adjustment [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Accumulated Other Comprehensive Income (Loss) [Member] Cumulative Effect, Period of Adoption, Adjustment [Member]	Total	Cumulative Effect, Period of Adoption, Adjustment [Member]
Beginning Balance at Dec. 31, 2021	$ 26,006		$ 21,458		$ 71,679		$ 1,675		$ 120,818
Beginning Balance (in shares) at Dec. 31, 2021	5,201,272
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	$ 0		0		6,465		0		6,465
Other comprehensive loss, net of tax	0		0		0		(25,522)		(25,522)
Employee Stock Purchase Plan share issuance	$ 21		78		0		0		99
Employee Stock Purchase Plan share issuance (in shares)	4,307
Common stock purchased	$ (1,340)		(5,315)		0		0		(6,655)
Common stock purchased (in shares)	(268,095)
Restricted stock vested	$ 66		(66)		0		0		0
Restricted stock vested (in shares)	13,152
Share-based compensation expense	$ 0		295		0		0		295
Cash dividends	0		0		(1,988)		0		(1,988)
Ending Balance at Sep. 30, 2022	$ 24,753		16,450		76,156		(23,847)		93,512
Ending Balance (in shares) at Sep. 30, 2022	4,950,636
Beginning Balance at Jun. 30, 2022	$ 25,091		17,643		74,266		(15,850)		101,150
Beginning Balance (in shares) at Jun. 30, 2022	5,018,144
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	$ 0		0		2,542		0		2,542
Other comprehensive loss, net of tax	0		0		0		(7,997)		(7,997)
Employee Stock Purchase Plan share issuance	$ 7		26		0		0		33
Employee Stock Purchase Plan share issuance (in shares)	1,492
Common stock purchased	$ (345)		(1,340)		0		0		(1,685)
Common stock purchased (in shares)	(69,000)
Restricted stock vested	$ 0		0		0		0		0
Restricted stock vested (in shares)	0
Share-based compensation expense	$ 0		121		0		0		121
Cash dividends	0		0		(652)		0		(652)
Ending Balance at Sep. 30, 2022	$ 24,753		16,450		76,156		(23,847)		93,512
Ending Balance (in shares) at Sep. 30, 2022	4,950,636
Beginning Balance at Dec. 31, 2022	$ 24,761		16,593		78,147		(20,767)		$ 98,734
Beginning Balance (ASC 326 [Member]) at Dec. 31, 2022		$ 0		$ 0		$ (991)		$ 0		$ (991)
Beginning Balance (in shares) at Dec. 31, 2022	4,952,094								4,999,083
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Accounting Standards Update [Extensible Enumeration]						ASC 326 [Member]
Net income	$ 0		0		6,247		0		$ 6,247
Other comprehensive loss, net of tax	0		0		0		(2,873)		(2,873)
Employee Stock Purchase Plan share issuance	$ 27		74		0		0		101
Employee Stock Purchase Plan share issuance (in shares)	5,453
Restricted stock vested	$ 129		(129)		0		0		0
Restricted stock vested (in shares)	25,926
Share-based compensation expense	$ 0		419		0		0		419
Cash dividends	0		0		(2,111)		0		(2,111)
Ending Balance at Sep. 30, 2023	$ 24,917		16,957		81,292		(23,640)		$ 99,526
Ending Balance (in shares) at Sep. 30, 2023	4,983,473								5,038,066
Beginning Balance at Jun. 30, 2023	$ 24,886		16,777		80,636		(19,757)		$ 102,542
Beginning Balance (in shares) at Jun. 30, 2023	4,977,276
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	$ 0		0		1,362		0		1,362
Other comprehensive loss, net of tax	0		0		0		(3,883)		(3,883)
Employee Stock Purchase Plan share issuance	$ 12		28		0		0		40
Employee Stock Purchase Plan share issuance (in shares)	2,274
Restricted stock vested	$ 19		(19)		0		0		0
Restricted stock vested (in shares)	3,923
Share-based compensation expense	$ 0		171		0		0		171
Cash dividends	0		0		(706)		0		(706)
Ending Balance at Sep. 30, 2023	$ 24,917		$ 16,957		$ 81,292		$ (23,640)		$ 99,526
Ending Balance (in shares) at Sep. 30, 2023	4,983,473								5,038,066