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	3,012	0	3,012
Other comprehensive loss, net of tax	0	0	0	(1,694)	(1,694)
Employee Stock Purchase Plan share issuance	$ 7	18	0	0	25
Employee Stock Purchase Plan share issuance (in shares)	1,276
Stock-based compensation expense	$ 0	61	0	0	61
Cash dividends	0	0	(626)	0	(626)
Ending Balance at Mar. 31, 2021	$ 25,979	21,324	68,245	2,375	117,923
Ending Balance (in shares) at Mar. 31, 2021	5,195,719
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	2,031	0	$ 2,031
Other comprehensive loss, net of tax	0	0	0	(11,133)	(11,133)
Employee Stock Purchase Plan share issuance	$ 7	27	0	0	34
Employee Stock Purchase Plan share issuance (in shares)	1,481
Common stock purchased	$ (615)	(2,433)	0	0	$ (3,048)
Common stock purchased (in shares)	(122,995)				(122,995)
Restricted stock vested	$ 41	(41)	0	0	$ 0
Restricted stock vested (in shares)	8,152
Stock-based compensation expense	$ 0	71	0	0	71
Cash dividends	0	0	(674)	0	(674)
Ending Balance at Mar. 31, 2022	$ 25,439	$ 19,082	$ 73,036	$ (9,458)	$ 108,099
Ending Balance (in shares) at Mar. 31, 2022	5,087,910				5,118,193