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Note 3 - Loans and Allowance for Credit Losses on Loans - Loans by Loan Portfolio Class (Details) - USD ($) $ in Thousands		Sep. 30, 2025	Dec. 31, 2024
Loans	[1]	$ 6,929,456	$ 6,520,402
Home Equity Line of Credit [Member]
Loans		271,017	247,433
Credit Card Receivable [Member]
Loans		25,577	24,540
Commercial Real Estate Portfolio Segment [Member]
Loans		3,039,026	2,838,788
Commercial Real Estate Portfolio Segment [Member] | Non-owner Occupied [Member]
Loans		1,947,892	1,835,935
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied [Member]
Loans		1,091,134	1,002,853
Commercial and Industrial Portfolio Segment [Member]
Loans		1,490,149	1,438,654
Commercial and Industrial Portfolio Segment [Member] | Term [Member]
Loans		865,759	884,399
Commercial and Industrial Portfolio Segment [Member] | Lines of Credit [Member]
Loans		624,390	554,255
Residential Real Estate Portfolio Segment [Member]
Loans		1,267,969	1,187,824
Residential Real Estate Portfolio Segment [Member] | Non-owner Occupied [Member]
Loans		394,429	382,744
Residential Real Estate Portfolio Segment [Member] | Owner Occupied [Member]
Loans		873,540	805,080
Construction and Development [Member]
Loans		675,052	623,005
Consumer Portfolio Segment [Member]
Loans		142,149	144,644
Finance Leases Portfolio Segment [Member]
Loans		$ 18,517	$ 15,514
[1] Total loans are presented inclusive of premiums, discounts and net loan origination fees and costs.

X

- Definition

Amortized cost excluding accrued interest, before allowance for credit loss, of financing receivable. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479344/326-20-45-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 3B
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-3B

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 5
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-5

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