Consolidated Statements of Stockholders' Equity (unaudited) - USD ($) $ in Thousands	Total	Cumulative Effect, Period of Adoption, Adjustment	Cumulative Effect, Period of Adoption, Adjusted Balance	Common Stock	Common Stock Cumulative Effect, Period of Adoption, Adjusted Balance	Surplus	Surplus Cumulative Effect, Period of Adoption, Adjusted Balance	Retained Earnings	Retained Earnings Cumulative Effect, Period of Adoption, Adjustment	Retained Earnings Cumulative Effect, Period of Adoption, Adjusted Balance	Accumulated Other Comprehensive Income (Loss)	Accumulated Other Comprehensive Income (Loss) Cumulative Effect, Period of Adoption, Adjusted Balance	Treasury Stock	Treasury Stock Cumulative Effect, Period of Adoption, Adjusted Balance
Beginning balance at Dec. 31, 2021	$ 148,956			$ 7,024		$ 64,437		$ 82,300			$ 3,293		$ (8,098)
Increase (Decrease) in Stockholders' Equity
Net income	6,609							6,609
Other comprehensive income	(19,582)										(19,582)
Purchase of treasury stock	(606)												(606)
Cash dividends declared, common stock	(990)							(990)
Ending balance at Mar. 31, 2022	134,387			7,024		64,437		87,919			(16,289)		(8,704)
Beginning balance at Dec. 31, 2021	148,956			7,024		64,437		82,300			3,293		(8,098)
Ending balance at Dec. 31, 2022	$ 127,411	$ (5,581)	$ 121,830	7,284	$ 7,284	71,042	$ 71,042	91,789	$ (5,581)	$ 86,208	(31,714)	$ (31,714)	(10,990)	$ (10,990)
Increase (Decrease) in Stockholders' Equity
Accounting Standards Update [Extensible Enumeration]	Accounting Standards Update 2016-13 [Member]
Net income	$ 3,271							3,271
Other comprehensive income	4,401										4,401
Cash dividends declared, common stock	(1,150)							(1,150)
Ending balance at Mar. 31, 2023	$ 128,352			$ 7,284		$ 71,042		$ 88,329			$ (27,313)		$ (10,990)