Consolidated Statements of Changes in Shareholders' Equity - USD ($) $ in Thousands	Preferred Stock [Member]	Common Stock Including Additional Paid in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Total
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
Employee stock purchase plan		50			50
Dividend reinvestment plan		810			810
Stock grants to directors for retainer fees		423			423
Stock-based compensation expense		3,316			3,316
Cash dividends			(22,473)		(22,473)
Net income			79,593		79,593
Change in net unrealized gain/(loss) on securities available for sale, net of tax effect				662	662
Balances at Dec. 31, 2024	0	299,705	334,646	(49,825)	584,526
Employee stock purchase plan		128			128
Dividend reinvestment plan		772			772
Stock grants to directors for retainer fees		444			444
Stock-based compensation expense		3,473			3,473
Cash dividends			(23,951)		(23,951)
Net income			88,753		88,753
Change in net unrealized gain/(loss) on securities available for sale, net of tax effect				25,830	25,830
Common stock issued to acquire Eastern Michigan Financial Corp.		44,909			44,909
Balances at Dec. 31, 2025	$ 0	$ 349,431	$ 399,448	$ (23,995)	$ 724,884