Consolidated Statements of Changes in Shareholders' Equity - USD ($) $ in Thousands	Cumulative Effect, Period of Adoption, Adjustment [Member] Retained Earnings [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member]	Preferred Stock [Member]	Common Stock Including Additional Paid in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Total
Balances at Dec. 31, 2020			$ 0	$ 302,029	$ 134,039	$ 5,486	$ 441,554
Employee stock purchase plan				48			48
Dividend reinvestment plan				877			877
Stock option exercises				50			50
Stock grants to directors for retainer fees				344			344
Stock-based compensation expense				3,784			3,784
Share repurchase program				(21,380)			(21,380)
Cash dividends					(18,524)		(18,524)
Net income					59,021		59,021
Change in net unrealized gain/(loss) on securities available for sale, net of tax effect						(9,215)	(9,215)
Balances (Accounting Standards Update 2016-13 [Member]) at Dec. 31, 2021	$ 316	$ 316
Balances at Dec. 31, 2021			0	285,752	174,536	(3,729)	456,559
Employee stock purchase plan				45			45
Dividend reinvestment plan				867			867
Stock option exercises				36			36
Stock grants to directors for retainer fees				359			359
Stock-based compensation expense				3,377			3,377
Cash dividends					(19,602)		(19,602)
Net income					61,063		61,063
Change in net unrealized gain/(loss) on securities available for sale, net of tax effect						(61,612)	(61,612)
Balances at Dec. 31, 2022			0	290,436	216,313	(65,341)	441,408
Employee stock purchase plan				45			45
Dividend reinvestment plan				891			891
Stock grants to directors for retainer fees				350			350
Stock-based compensation expense				3,384			3,384
Cash dividends					(21,004)		(21,004)
Net income					82,217		82,217
Change in net unrealized gain/(loss) on securities available for sale, net of tax effect						14,854	14,854
Balances at Dec. 31, 2023			$ 0	$ 295,106	$ 277,526	$ (50,487)	$ 522,145