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Note 3 - Loans and Allowance for Credit Losses - Components of Loan Portfolio (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2025	Dec. 31, 2024
Loans	$ 4,698,019	$ 4,600,781
Percent of portfolio	100.00%	100.00%
Period increase (decrease)	2.10%
Commercial Portfolio Segment [Member]
Loans	$ 3,821,158	$ 3,707,304
Percent of portfolio	81.30%	80.60%
Period increase (decrease)	3.10%
Commercial Portfolio Segment [Member] | Commercial and Industrial [Member]
Loans	$ 1,375,368	$ 1,287,308
Percent of portfolio	29.30%	28.00%
Period increase (decrease)	6.80%
Commercial Portfolio Segment [Member] | Vacant Land and Land Development and Residential Construction Loan [Member]
Loans	$ 67,520	$ 66,936
Percent of portfolio	1.40%	1.50%
Period increase (decrease)	0.90%
Commercial Portfolio Segment [Member] | Real Estate Owner Occupied Loan [Member]
Loans	$ 725,106	$ 748,837
Percent of portfolio	15.40%	16.30%
Period increase (decrease)	(3.20%)
Commercial Portfolio Segment [Member] | Real Estate Non Owner Occupied Loan [Member]
Loans	$ 1,134,012	$ 1,128,404
Percent of portfolio	24.10%	24.50%
Period increase (decrease)	0.50%
Commercial Portfolio Segment [Member] | Real Estate Multi Family and Residential Rental Loan [Member]
Loans	$ 519,152	$ 475,819
Percent of portfolio	11.10%	10.30%
Period increase (decrease)	9.10%
Retail Portfolio Segment [Member]
Loans	$ 876,861	$ 893,477
Percent of portfolio	18.70%	19.40%
Period increase (decrease)	(1.90%)
Retail Portfolio Segment [Member] | One to Four Family Mortgages [Member]
Loans	$ 799,427	$ 827,597
Percent of portfolio	17.00%	18.00%
Period increase (decrease)	(3.40%)
Retail Portfolio Segment [Member] | Other Consumer Loans [Member]
Loans	$ 77,434	$ 65,880
Percent of portfolio	1.70%	1.40%
Period increase (decrease)	17.50%

X

- Definition

The percentage of increase or (decrease) during the period in loans and leases receivable net of deferred income.

+ References

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- Definition

Percentage, before allowance for credit loss, of financing receivable to total financing receivable.

+ References

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- Definition

Amortized cost, before allowance for credit loss, of financing receivable. Excludes financing receivable covered under loss sharing agreement and net investment in lease.

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