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, 2019	$ 25,901	$ 20,959	$ 62,975	$ (79)	$ 109,756
Beginning Balance (in shares) at Dec. 31, 2019	5,180,105
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	$ 0	0	1,250	0	1,250
Other comprehensive loss, net of tax	0	0	0	(445)	(445)
Employee Stock Purchase Plan share issuance	$ 4	17	0	0	21
Employee Stock Purchase Plan share issuance (in shares)	858
Restricted stock vested	$ 36	(36)	0	0	0
Restricted stock vested (in shares)	7,258
Stock-based compensation expense	$ 0	86	0	0	86
Cash dividends	0	0	(624)	0	(624)
Ending Balance at Mar. 31, 2020	$ 25,941	21,026	63,601	(524)	110,044
Ending Balance (in shares) at Mar. 31, 2020	5,188,221
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				5,224,019
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				5,225,295