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	11,098							11,098
Other comprehensive income (loss)	(31,008)										(31,008)
Purchase of treasury stock	(2,892)												(2,892)
Stock dividend	0					6,865		(6,865)
Cash dividends declared, common stock	(2,096)							(2,096)
Ending balance at Jun. 30, 2022	124,058			7,024		71,302		84,437			(27,715)		(10,990)
Beginning balance at Mar. 31, 2022	134,387			7,024		64,437		87,919			(16,289)		(8,704)
Increase (Decrease) in Stockholders' Equity
Net income	4,489							4,489
Other comprehensive income (loss)	(11,426)										(11,426)
Purchase of treasury stock	(2,286)												(2,286)
Stock dividend	0					6,865		(6,865)
Cash dividends declared, common stock	(1,106)							(1,106)
Ending balance at Jun. 30, 2022	124,058			7,024		71,302		84,437			(27,715)		(10,990)
Beginning 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
Net income	5,820							5,820
Other comprehensive income (loss)	1,124										1,124
Stock dividend	0					6,005		(6,005)
Cash dividends declared, common stock	(2,301)							(2,301)
Ending balance at Jun. 30, 2023	126,473			7,284		77,047		83,722			(30,590)		(10,990)
Beginning balance at Mar. 31, 2023	128,352			7,284		71,042		88,329			(27,313)		(10,990)
Increase (Decrease) in Stockholders' Equity
Net income	2,549							2,549
Other comprehensive income (loss)	(3,277)										(3,277)
Stock dividend	0					6,005		(6,005)
Cash dividends declared, common stock	(1,151)							(1,151)
Ending balance at Jun. 30, 2023	$ 126,473			$ 7,284		$ 77,047		$ 83,722			$ (30,590)		$ (10,990)