Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Cash flows from operating activities:
Net income	$ 19,499	$ 19,404	$ 38,178	$ 38,717
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization			2,420	2,561
Deferred taxes			251	242
Stock-based compensation			687	788
Provision for credit losses	2,972	2,009	5,628	3,125	$ 6,811
Write-downs of other real estate owned and other repossessed assets			49	106
Gains on sale of mortgage loans held for sale	(119)	(115)	(164)	(236)
Securities gains	(1)		(1)	(4)
Fair value adjustments in equity securities	475	(165)	104	(379)
Gains on sale of assets, net			(68)	(325)
Proceeds from sale of mortgage loans held for sale			6,160	9,098
Funding of mortgage loans held for sale			(6,194)	(8,991)
Amortization of securities premiums and discounts, net			1,257	1,454
Change in cash surrender value of bank owned life insurance			(2,492)	(1,029)
Changes in lease liabilities			(513)	(678)
Mortgage servicing rights:
Fair value adjustments			(18)	334
New servicing assets created			(66)	(96)
Changes in:
Accrued interest receivable			(867)	(665)
Other assets			(4,862)	(1,421)
Accrued interest payable			4,871	3,387
Other liabilities			1,718	(5,364)
Net cash provided by operating activities			46,078	40,624
Securities available-for-sale (AFS):
Purchase of AFS securities			(13,109)	(8,820)
Proceeds from sales of AFS securities			1,084	18,561
Proceeds from prepayments, calls, and maturities of AFS securities			79,134	56,666
Change in loans, net			(213,641)	(220,647)
Purchase of premises and equipment			(3,705)	(2,081)
Proceeds from sale and retirement of premises and equipment			0	296
Purchase of Federal Home Loan Bank stock			(4,423)	0
Proceeds from sale of stock by Federal Home Loan Bank			0	131
Proceeds from sale of other real estate owned and repossessed assets			298	739
Additional investment in other real estate owned and repossessed assets			(12)	(40)
Liquidation of cash surrender value of bank owned life insurance			1,806	0
Proceeds from settlement of bank owned life insurance			1,308	0
Net cash used in investing activities			(151,260)	(155,195)
Cash flows from financing activities:
Change in deposits, net			9,176	90,517
Change in repurchase agreements and federal funds purchased, net			2,331	13,589
Proceeds from Federal Home Loan Bank advances			100,000	100,000
Payments on advances from Federal Home Loan Bank			(100,010)	(100,010)
Proceeds from long-term debt/other borrowings			0	6,563
Repayment of long-term debt/other borrowings			(111)	(54)
Issuance of common stock			572	558
Dividends paid			(16,515)	(15,733)
Net cash provided by (used in) financing activities			(4,557)	95,430
Net decrease in cash and cash equivalents			(109,739)	(19,141)
Cash and cash equivalents at beginning of period			271,400	128,686	128,686
Cash and cash equivalents at end of period	$ 161,661	$ 109,545	161,661	109,545	$ 271,400
Supplemental disclosures:
Income taxes paid			10,891	12,308
Interest paid			57,510	35,440
Non-cash activities:
Loans to facilitate the sale of other real estate owned and repossessed assets			197	1,022
Common stock dividends accrued, paid in subsequent quarter			277	281
Real estate acquired in settlement of loans			474	175
Right-of-use assets obtained in exchange for new operating lease liabilities			$ 0	$ 364