Consolidated Statements of Changes in Stockholders' Equity - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Total
Beginning Balance at Dec. 31, 2020	$ 25,972	$ 21,245	$ 65,859	$ 4,069	$ 117,145
Beginning Balance (in shares) at Dec. 31, 2020	5,194,443
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	$ 0	0	6,762	0	6,762
Other comprehensive loss, net of tax	0	0	0	(1,495)	(1,495)
Employee Stock Purchase Plan share issuance	$ 19	60	0	0	79
Employee Stock Purchase Plan share issuance (in shares)	3,775
Restricted stock vested	$ 43	(43)	0	0	0
Restricted stock vested (in shares)	8,521
Stock-based compensation expense	$ 0	214	0	0	214
Cash dividends	0	0	(1,938)	0	(1,938)
Ending Balance at Sep. 30, 2021	$ 26,034	21,476	70,683	2,574	120,767
Ending Balance (in shares) at Sep. 30, 2021	5,206,739
Beginning Balance at Jun. 30, 2021	$ 26,028	21,372	69,457	3,071	119,928
Beginning Balance (in shares) at Jun. 30, 2021	5,205,532
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	$ 0	0	1,908	0	1,908
Other comprehensive loss, net of tax	0	0	0	(497)	(497)
Employee Stock Purchase Plan share issuance	$ 6	20	0	0	26
Employee Stock Purchase Plan share issuance (in shares)	1,207
Restricted stock vested	$ 0	0	0	0	0
Restricted stock vested (in shares)	0
Stock-based compensation expense	$ 0	84	0	0	84
Cash dividends	0	0	(682)	0	(682)
Ending Balance at Sep. 30, 2021	$ 26,034	21,476	70,683	2,574	120,767
Ending Balance (in shares) at Sep. 30, 2021	5,206,739
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				5,239,707
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)				(268,095)
Restricted stock vested	$ 66	(66)	0	0	$ 0
Restricted stock vested (in shares)	13,152
Stock-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				4,996,728
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)				(69,000)
Restricted stock vested	$ 0	0	0	0	$ 0
Restricted stock vested (in shares)	0
Stock-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				4,996,728