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Note 3 - Loans and Allowance for Credit Losses on Loans - Aging of the Recorded Investment in Loans (Details) - USD ($) $ in Thousands		Sep. 30, 2025	Dec. 31, 2024
Loans	[1]	$ 6,929,456	$ 6,520,402
Commercial Real Estate Portfolio Segment [Member]
Loans		3,039,026	2,838,788
Commercial and Industrial Portfolio Segment [Member]
Loans		1,490,149	1,438,654
Residential Real Estate Portfolio Segment [Member]
Loans		1,267,969	1,187,824
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
Non-owner Occupied [Member] | Commercial Real Estate Portfolio Segment [Member]
Loans		1,947,892	1,835,935
Non-owner Occupied [Member] | Residential Real Estate Portfolio Segment [Member]
Loans		394,429	382,744
Owner Occupied [Member] | Commercial Real Estate Portfolio Segment [Member]
Loans		1,091,134	1,002,853
Owner Occupied [Member] | Residential Real Estate Portfolio Segment [Member]
Loans		873,540	805,080
Term, Excluding PPP [Member] | Commercial and Industrial Portfolio Segment [Member]
Loans		865,759	884,399
Lines of Credit [Member] | Commercial and Industrial Portfolio Segment [Member]
Loans		624,390	554,255
Home Equity Line of Credit [Member]
Loans		271,017	247,433
Credit Card Receivable [Member]
Loans		25,577	24,540
Credit Card Receivable [Member] | Commercial Portfolio Segment [Member]
Loans		25,577	24,540
Financial Asset, Not Past Due [Member]
Loans		6,897,036	6,487,947
Financial Asset, Not Past Due [Member] | Commercial Real Estate Portfolio Segment [Member]
Loans		3,033,246	2,832,486
Financial Asset, Not Past Due [Member] | Commercial and Industrial Portfolio Segment [Member]
Loans		1,486,859	1,432,252
Financial Asset, Not Past Due [Member] | Residential Real Estate Portfolio Segment [Member]
Loans		1,248,075	1,170,463
Financial Asset, Not Past Due [Member] | Construction and Development [Member]
Loans		673,691	622,614
Financial Asset, Not Past Due [Member] | Consumer Portfolio Segment [Member]
Loans		141,094	143,796
Financial Asset, Not Past Due [Member] | Finance Leases Portfolio Segment [Member]
Loans		18,517	15,514
Financial Asset, Not Past Due [Member] | Non-owner Occupied [Member] | Commercial Real Estate Portfolio Segment [Member]
Loans		1,943,830	1,831,135
Financial Asset, Not Past Due [Member] | Non-owner Occupied [Member] | Residential Real Estate Portfolio Segment [Member]
Loans		393,432	381,177
Financial Asset, Not Past Due [Member] | Owner Occupied [Member] | Commercial Real Estate Portfolio Segment [Member]
Loans		1,089,416	1,001,351
Financial Asset, Not Past Due [Member] | Owner Occupied [Member] | Residential Real Estate Portfolio Segment [Member]
Loans		854,643	789,286
Financial Asset, Not Past Due [Member] | Term, Excluding PPP [Member] | Commercial and Industrial Portfolio Segment [Member]
Loans		864,171	879,597
Financial Asset, Not Past Due [Member] | Lines of Credit [Member] | Commercial and Industrial Portfolio Segment [Member]
Loans		622,688	552,655
Financial Asset, Not Past Due [Member] | Home Equity Line of Credit [Member]
Loans		270,531	246,700
Financial Asset, Not Past Due [Member] | Credit Card Receivable [Member] | Commercial Portfolio Segment [Member]
Loans		25,023	24,122
Financial Asset, 30 to 59 Days Past Due [Member]
Loans		11,784	10,848
Financial Asset, 30 to 59 Days Past Due [Member] | Commercial Real Estate Portfolio Segment [Member]
Loans		1,395	816
Financial Asset, 30 to 59 Days Past Due [Member] | Commercial and Industrial Portfolio Segment [Member]
Loans		1,499	162
Financial Asset, 30 to 59 Days Past Due [Member] | Residential Real Estate Portfolio Segment [Member]
Loans		7,948	8,365
Financial Asset, 30 to 59 Days Past Due [Member] | Construction and Development [Member]
Loans		0	391
Financial Asset, 30 to 59 Days Past Due [Member] | Consumer Portfolio Segment [Member]
Loans		461	470
Financial Asset, 30 to 59 Days Past Due [Member] | Finance Leases Portfolio Segment [Member]
Loans		0	0
Financial Asset, 30 to 59 Days Past Due [Member] | Non-owner Occupied [Member] | Commercial Real Estate Portfolio Segment [Member]
Loans		250	168
Financial Asset, 30 to 59 Days Past Due [Member] | Non-owner Occupied [Member] | Residential Real Estate Portfolio Segment [Member]
Loans		88	628
Financial Asset, 30 to 59 Days Past Due [Member] | Owner Occupied [Member] | Commercial Real Estate Portfolio Segment [Member]
Loans		1,145	648
Financial Asset, 30 to 59 Days Past Due [Member] | Owner Occupied [Member] | Residential Real Estate Portfolio Segment [Member]
Loans		7,860	7,737
Financial Asset, 30 to 59 Days Past Due [Member] | Term, Excluding PPP [Member] | Commercial and Industrial Portfolio Segment [Member]
Loans		85	103
Financial Asset, 30 to 59 Days Past Due [Member] | Lines of Credit [Member] | Commercial and Industrial Portfolio Segment [Member]
Loans		1,414	59
Financial Asset, 30 to 59 Days Past Due [Member] | Home Equity Line of Credit [Member]
Loans		278	424
Financial Asset, 30 to 59 Days Past Due [Member] | Credit Card Receivable [Member] | Commercial Portfolio Segment [Member]
Loans		203	220
Financial Asset, 60 to 89 Days Past Due [Member]
Loans		7,123	12,909
Financial Asset, 60 to 89 Days Past Due [Member] | Commercial Real Estate Portfolio Segment [Member]
Loans		255	5,125
Financial Asset, 60 to 89 Days Past Due [Member] | Commercial and Industrial Portfolio Segment [Member]
Loans		688	4,262
Financial Asset, 60 to 89 Days Past Due [Member] | Residential Real Estate Portfolio Segment [Member]
Loans		5,527	3,232
Financial Asset, 60 to 89 Days Past Due [Member] | Construction and Development [Member]
Loans		0	0
Financial Asset, 60 to 89 Days Past Due [Member] | Consumer Portfolio Segment [Member]
Loans		396	69
Financial Asset, 60 to 89 Days Past Due [Member] | Finance Leases Portfolio Segment [Member]
Loans		0	0
Financial Asset, 60 to 89 Days Past Due [Member] | Non-owner Occupied [Member] | Commercial Real Estate Portfolio Segment [Member]
Loans		255	4,410
Financial Asset, 60 to 89 Days Past Due [Member] | Non-owner Occupied [Member] | Residential Real Estate Portfolio Segment [Member]
Loans		0	56
Financial Asset, 60 to 89 Days Past Due [Member] | Owner Occupied [Member] | Commercial Real Estate Portfolio Segment [Member]
Loans		0	715
Financial Asset, 60 to 89 Days Past Due [Member] | Owner Occupied [Member] | Residential Real Estate Portfolio Segment [Member]
Loans		5,527	3,176
Financial Asset, 60 to 89 Days Past Due [Member] | Term, Excluding PPP [Member] | Commercial and Industrial Portfolio Segment [Member]
Loans		688	2,740
Financial Asset, 60 to 89 Days Past Due [Member] | Lines of Credit [Member] | Commercial and Industrial Portfolio Segment [Member]
Loans		0	1,522
Financial Asset, 60 to 89 Days Past Due [Member] | Home Equity Line of Credit [Member]
Loans		208	194
Financial Asset, 60 to 89 Days Past Due [Member] | Credit Card Receivable [Member] | Commercial Portfolio Segment [Member]
Loans		49	27
Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans		13,513	8,698
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Commercial Real Estate Portfolio Segment [Member]
Loans		4,130	361
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Commercial and Industrial Portfolio Segment [Member]
Loans		1,103	1,978
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Residential Real Estate Portfolio Segment [Member]
Loans		6,419	5,764
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Construction and Development [Member]
Loans		1,361	0
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Consumer Portfolio Segment [Member]
Loans		198	309
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Finance Leases Portfolio Segment [Member]
Loans		0	0
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Non-owner Occupied [Member] | Commercial Real Estate Portfolio Segment [Member]
Loans		3,557	222
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Non-owner Occupied [Member] | Residential Real Estate Portfolio Segment [Member]
Loans		909	883
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Owner Occupied [Member] | Commercial Real Estate Portfolio Segment [Member]
Loans		573	139
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Owner Occupied [Member] | Residential Real Estate Portfolio Segment [Member]
Loans		5,510	4,881
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Term, Excluding PPP [Member] | Commercial and Industrial Portfolio Segment [Member]
Loans		815	1,959
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Lines of Credit [Member] | Commercial and Industrial Portfolio Segment [Member]
Loans		288	19
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Home Equity Line of Credit [Member]
Loans		0	115
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Credit Card Receivable [Member] | Commercial Portfolio Segment [Member]
Loans		302	171
Financial Asset, Past Due [Member]
Loans		32,420	32,455
Financial Asset, Past Due [Member] | Commercial Real Estate Portfolio Segment [Member]
Loans		5,780	6,302
Financial Asset, Past Due [Member] | Commercial and Industrial Portfolio Segment [Member]
Loans		3,290	6,402
Financial Asset, Past Due [Member] | Residential Real Estate Portfolio Segment [Member]
Loans		19,894	17,361
Financial Asset, Past Due [Member] | Construction and Development [Member]
Loans		1,361	391
Financial Asset, Past Due [Member] | Consumer Portfolio Segment [Member]
Loans		1,055	848
Financial Asset, Past Due [Member] | Finance Leases Portfolio Segment [Member]
Loans		0	0
Financial Asset, Past Due [Member] | Non-owner Occupied [Member] | Commercial Real Estate Portfolio Segment [Member]
Loans		4,062	4,800
Financial Asset, Past Due [Member] | Non-owner Occupied [Member] | Residential Real Estate Portfolio Segment [Member]
Loans		997	1,567
Financial Asset, Past Due [Member] | Owner Occupied [Member] | Commercial Real Estate Portfolio Segment [Member]
Loans		1,718	1,502
Financial Asset, Past Due [Member] | Owner Occupied [Member] | Residential Real Estate Portfolio Segment [Member]
Loans		18,897	15,794
Financial Asset, Past Due [Member] | Term, Excluding PPP [Member] | Commercial and Industrial Portfolio Segment [Member]
Loans		1,588	4,802
Financial Asset, Past Due [Member] | Lines of Credit [Member] | Commercial and Industrial Portfolio Segment [Member]
Loans		1,702	1,600
Financial Asset, Past Due [Member] | Home Equity Line of Credit [Member]
Loans		486	733
Financial Asset, Past Due [Member] | Credit Card Receivable [Member] | Commercial Portfolio Segment [Member]
Loans		$ 554	$ 418
[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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