CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (Unaudited) - USD ($) $ in Thousands	Total	Impact of CECL Adoption	Common Stock	Additional paid-in capital	Retained earnings	Retained earnings Impact of CECL Adoption	Treasury stock	Accumulated other comprehensive loss
Beginning balance (in shares) at Dec. 31, 2021			4,493,655
Beginning balances at Dec. 31, 2021	$ 84,341		$ 9,934	$ 1,769	$ 78,350		$ (4,160)	$ (1,552)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	9,171				9,171
Other comprehensive loss	(39,386)							(39,386)
Dividend reinvestment plan (in shares)			1,466
Dividend reinvestment plan	42			29			13
Cash dividends declared	(4,720)				(4,720)
Stock based compensation expense (in shares)			3,416
Stock based compensation expense	359		$ 7	352
Purchase of treasury stock (in shares)			(2,650)
Purchase of treasury stock	(79)						(79)
Ending balance (in shares) at Sep. 30, 2022			4,495,887
Ending balances at Sep. 30, 2022	49,728		$ 9,941	2,150	82,801		(4,226)	(40,938)
Beginning balance (in shares) at Jun. 30, 2022			4,494,812
Beginning balances at Jun. 30, 2022	59,946		$ 9,940	2,019	80,617		(4,231)	(28,399)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	3,758				3,758
Other comprehensive loss	(12,539)							(12,539)
Dividend reinvestment plan (in shares)			538
Dividend reinvestment plan	14			9			5
Cash dividends declared	(1,574)				(1,574)
Stock based compensation expense (in shares)			537
Stock based compensation expense	123		$ 1	122
Ending balance (in shares) at Sep. 30, 2022			4,495,887
Ending balances at Sep. 30, 2022	49,728		$ 9,941	2,150	82,801		(4,226)	(40,938)
Beginning balance (in shares) at Dec. 31, 2022			4,508,587
Beginning balances at Dec. 31, 2022	55,220	$ 37	$ 9,965	2,225	84,669	$ 37	(4,220)	(37,419)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	8,208				8,208
Other comprehensive loss	(9,644)							(9,644)
Dividend reinvestment plan (in shares)			2,560
Dividend reinvestment plan	61			38			23
Cash dividends declared	(4,869)				(4,869)
Stock based compensation expense (in shares)			1,788
Stock based compensation expense	348		$ 4	344
Purchase of treasury stock (in shares)			(5,030)
Purchase of treasury stock	(115)						(115)
Ending balance (in shares) at Sep. 30, 2023			4,507,905
Ending balances at Sep. 30, 2023	49,246		$ 9,969	2,607	88,045		(4,312)	(47,063)
Beginning balance (in shares) at Jun. 30, 2023			4,509,573
Beginning balances at Jun. 30, 2023	59,054		$ 9,969	2,465	87,136		(4,265)	(36,251)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	2,532				2,532
Other comprehensive loss	(10,812)							(10,812)
Dividend reinvestment plan (in shares)			832
Dividend reinvestment plan	20			12			8
Cash dividends declared	(1,623)				(1,623)
Stock based compensation expense (in shares)			0
Stock based compensation expense	130		$ 0	130
Purchase of treasury stock (in shares)			(2,500)
Purchase of treasury stock	(55)						(55)
Ending balance (in shares) at Sep. 30, 2023			4,507,905
Ending balances at Sep. 30, 2023	$ 49,246		$ 9,969	$ 2,607	$ 88,045		$ (4,312)	$ (47,063)