Consolidated Statements of Cash Flows - USD ($)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Operating activities
Net income	$ 17,780,000	$ 11,696,000	$ 40,005,000
Adjustments to reconcile net income to net cash provided by operating activities
Deferred income taxes	(3,983,000)	893,000	913,000
Provision for credit losses	18,141,000	2,057,000	0
Depreciation and amortization	9,842,000	8,525,000	8,467,000
Amortization and accretion of premiums/discounts on investment securities	1,499,000	2,047,000	3,387,000
Amortization of operating lease right-of-use assets	5,038,000	(15,000)	(229,000)
Stock-based compensation cost	1,650,000	1,628,000	1,904,000
Originations of loans held for sale	(305,019,000)	(296,831,000)	(604,763,000)
Proceeds on loans held for sale	309,905,000	302,252,000	653,302,000
Realized loss (gain) on loans sold	(8,995,000)	(7,323,000)	(11,616,000)
Servicing rights capitalized upon sale of mortgage loans	(224,000)	0	0
(Increase) in value of bank-owned life insurance	(862,000)	(877,000)	(835,000)
Realized loss (gain) on sale of premises and equipment	(3,941,000)	50,000	33,000
Realized loss (gain) on derivative instruments	(126,000)	365,000	2,006,000
Realized loss (gain) on sale of foreclosed assets	(1,000)	(17,000)	71,000
Realized loss (gain) on sale of investment securities	0	24,643,000	0
Realized loss (gain) on BOLI mortality	0	(1,196,000)	0
Change in fair value of mortgage servicing rights	(197,000)	0	0
Realized loss (gain) on servicing rights	0	(3,000)	(702,000)
Realized loss (gain) on sale of ESOP trustee line of business	0	(2,775,000)	0
Net change in:
Accrued interest receivable	(1,345,000)	(2,831,000)	(3,241,000)
Other assets	1,288,000	(5,676,000)	5,291,000
Accrued expenses and other liabilities	(11,490,000)	(7,728,000)	8,973,000
Net cash provided (used) by operating activities	28,960,000	28,884,000	102,966,000
Investing activities
Proceeds from sales of trading investment securities	9,020,000	0
Purchases of trading investment securities	(11,757,000)	0
Proceeds from sales or calls of investment securities available-for-sale	130,415,000	171,758,000	0
Proceeds from maturities of investment securities available-for-sale	54,709,000	67,346,000	105,633,000
Purchases of investment securities available-for-sale	(98,350,000)	0	(95,600,000)
Proceeds from calls of investment securities held-to-maturity	613,000	242,000	963,000
Proceeds from maturities and paydowns of investment securities held-to-maturity	22,223,000	20,623,000	27,429,000
Net (increase) decrease in loans	(441,686,000)	(314,620,000)	(416,150,000)
Net (increase) decrease in FHLB stock	2,910,000	2,796,000	(15,556,000)
Net cash received (paid) for business combinations	8,610,000	0	101,511,000
Purchases of BOLI	(1,935,000)	0
Proceeds from BOLI mortality claim	0	2,828,000	0
Proceeds from sale of premises and equipment	7,460,000
Purchases of premises and equipment	(12,370,000)	(3,173,000)	(1,789,000)
Proceeds from sales of foreclosed assets	105,000	210,000	937,000
Net cash provided (used) by investing activities	(330,033,000)	(51,990,000)	(292,622,000)
Financing activities
Net increase (decrease) in deposits	324,950,000	180,127,000	(358,752,000)
Net increase (decrease) in short-term borrowings	(76,810,000)	(63,910,000)	378,080,000
Repayments of long-term debt	0	0	(203,000)
Cash dividends paid on common stock	(15,445,000)	(14,822,000)	(12,800,000)
Repurchase of common stock	(276,000)	(6,638,000)	(738,000)
Net cash provided (used) by financing activities	232,419,000	94,757,000	5,587,000
Net change in cash and cash equivalents	(68,654,000)	71,651,000	(184,069,000)
Cash and cash equivalents at beginning of year	129,893,000	58,242,000	242,311,000
Cash and cash equivalents at end of year	61,239,000	129,893,000	58,242,000
Supplemental Cash Flow Disclosures
Interest paid	110,016,000	72,644,000	15,095,000
Income taxes paid	448,000	10,840,000	12,531,000
Cash dividends declared, not paid	5,073,000	3,757,000	3,615,000
Cash and cash equivalents acquired	0	0	101,696,000
Supplemental Disclosures of Noncash Investing and Financing Activities
Loan collateral transferred to foreclosed assets	(73,000)	(195,000)	(153,000)
Loan collateral transferred to foreclosed assets	73,000	195,000	153,000
Premises and equipment transferred to other assets	2,086,000	0
Right-of-use assets obtained in exchange for new operating lease liabilities, net	9,373,000	1,868,000	4,266,000
Change in fair value hedges presented within residential real estate loans and other assets	98,000	(98,000)	0
Noncash assets acquired	1,021,762,000	0	297,745,000
Liabilities assumed	(979,117,000)	0	(354,358,000)
Issuance of common stock for the acquisition	(123,602)	0	(64,019)
Net noncash acquired	$ (80,957,000)	$ 0	$ (120,632,000)