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	4,854	0	4,854
Other comprehensive income (loss), net of tax	0	0	0	(998)	(998)
Employee Stock Purchase Plan share issuance	$ 13	40	0	0	53
Employee Stock Purchase Plan share issuance (in shares)	2,568
Restricted stock vested	$ 43	(43)	0	0	0
Restricted stock vested (in shares)	8,521
Stock-based compensation expense	$ 0	130	0	0	130
Cash dividends	0	0	(1,256)	0	(1,256)
Ending Balance at Jun. 30, 2021	$ 26,028	21,372	69,457	3,071	119,928
Ending Balance (in shares) at Jun. 30, 2021	5,205,532
Beginning Balance at Mar. 31, 2021	$ 25,979	21,324	68,245	2,375	117,923
Beginning Balance (in shares) at Mar. 31, 2021	5,195,719
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	$ 0	0	1,842	0	1,842
Other comprehensive income (loss), net of tax	0	0	0	696	696
Employee Stock Purchase Plan share issuance	$ 6	22	0	0	28
Employee Stock Purchase Plan share issuance (in shares)	1,292
Restricted stock vested	$ 43	(43)	0	0	0
Restricted stock vested (in shares)	8,521
Stock-based compensation expense	$ 0	69	0	0	69
Cash dividends	0	0	(630)	0	(630)
Ending Balance at Jun. 30, 2021	$ 26,028	21,372	69,457	3,071	119,928
Ending Balance (in shares) at Jun. 30, 2021	5,205,532
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	3,923	0	$ 3,923
Other comprehensive income (loss), net of tax	0	0	0	(17,525)	(17,525)
Employee Stock Purchase Plan share issuance	$ 14	52	0	0	66
Employee Stock Purchase Plan share issuance (in shares)	2,815
Common stock purchased	$ (995)	(3,975)	0	0	$ (4,970)
Common stock purchased (in shares)	(199,095)				(199,095)
Restricted stock vested	$ 66	(66)	0	0	$ 0
Restricted stock vested (in shares)	13,152
Stock-based compensation expense	$ 0	174	0	0	174
Cash dividends	0	0	(1,336)	0	(1,336)
Ending Balance at Jun. 30, 2022	$ 25,091	17,643	74,266	(15,850)	$ 101,150
Ending Balance (in shares) at Jun. 30, 2022	5,018,144				5,064,236
Beginning Balance at Mar. 31, 2022	$ 25,439	19,082	73,036	(9,458)	$ 108,099
Beginning Balance (in shares) at Mar. 31, 2022	5,087,910
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	$ 0	0	1,892	0	1,892
Other comprehensive income (loss), net of tax	0	0	0	(6,392)	(6,392)
Employee Stock Purchase Plan share issuance	$ 7	25	0	0	32
Employee Stock Purchase Plan share issuance (in shares)	1,334
Common stock purchased	$ (380)	(1,542)	0	0	$ (1,922)
Common stock purchased (in shares)	(76,100)				(76,100)
Restricted stock vested	$ 25	(25)	0	0	$ 0
Restricted stock vested (in shares)	5,000
Stock-based compensation expense	$ 0	103	0	0	103
Cash dividends	0	0	(662)	0	(662)
Ending Balance at Jun. 30, 2022	$ 25,091	$ 17,643	$ 74,266	$ (15,850)	$ 101,150
Ending Balance (in shares) at Jun. 30, 2022	5,018,144				5,064,236