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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		Mar. 31, 2025	Dec. 31, 2024
Loans	[1]	$ 6,646,360	$ 6,520,402
Commercial Real Estate Portfolio Segment [Member]
Loans		2,875,126	2,838,788
Commercial and Industrial Portfolio Segment [Member]
Loans		1,463,746	1,438,654
Residential Real Estate Portfolio Segment [Member]
Loans		1,195,252	1,187,824
Construction and Development [Member]
Loans		679,345	623,005
Consumer Portfolio Segment [Member]
Loans		140,009	144,644
Finance Leases Portfolio Segment [Member]
Loans		14,460	15,514
Non-owner Occupied [Member] | Commercial Real Estate Portfolio Segment [Member]
Loans		1,870,352	1,835,935
Non-owner Occupied [Member] | Residential Real Estate Portfolio Segment [Member]
Loans		381,429	382,744
Owner Occupied [Member] | Commercial Real Estate Portfolio Segment [Member]
Loans		1,004,774	1,002,853
Owner Occupied [Member] | Residential Real Estate Portfolio Segment [Member]
Loans		813,823	805,080
Term, Excluding PPP [Member] | Commercial and Industrial Portfolio Segment [Member]
Loans		899,813	884,399
Lines of Credit [Member] | Commercial and Industrial Portfolio Segment [Member]
Loans		563,933	554,255
Home Equity Line of Credit [Member]
Loans		252,125	247,433
Credit Card Receivable [Member]
Loans		26,297	24,540
Credit Card Receivable [Member] | Commercial Portfolio Segment [Member]
Loans		26,297	24,540
Financial Asset, Not Past Due [Member]
Loans		6,612,852	6,487,947
Financial Asset, Not Past Due [Member] | Commercial Real Estate Portfolio Segment [Member]
Loans		2,862,198	2,832,486
Financial Asset, Not Past Due [Member] | Commercial and Industrial Portfolio Segment [Member]
Loans		1,461,710	1,432,252
Financial Asset, Not Past Due [Member] | Residential Real Estate Portfolio Segment [Member]
Loans		1,178,464	1,170,463
Financial Asset, Not Past Due [Member] | Construction and Development [Member]
Loans		679,265	622,614
Financial Asset, Not Past Due [Member] | Consumer Portfolio Segment [Member]
Loans		139,308	143,796
Financial Asset, Not Past Due [Member] | Finance Leases Portfolio Segment [Member]
Loans		14,460	15,514
Financial Asset, Not Past Due [Member] | Non-owner Occupied [Member] | Commercial Real Estate Portfolio Segment [Member]
Loans		1,864,059	1,831,135
Financial Asset, Not Past Due [Member] | Non-owner Occupied [Member] | Residential Real Estate Portfolio Segment [Member]
Loans		379,591	381,177
Financial Asset, Not Past Due [Member] | Owner Occupied [Member] | Commercial Real Estate Portfolio Segment [Member]
Loans		998,139	1,001,351
Financial Asset, Not Past Due [Member] | Owner Occupied [Member] | Residential Real Estate Portfolio Segment [Member]
Loans		798,873	789,286
Financial Asset, Not Past Due [Member] | Term, Excluding PPP [Member] | Commercial and Industrial Portfolio Segment [Member]
Loans		898,044	879,597
Financial Asset, Not Past Due [Member] | Lines of Credit [Member] | Commercial and Industrial Portfolio Segment [Member]
Loans		563,666	552,655
Financial Asset, Not Past Due [Member] | Home Equity Line of Credit [Member]
Loans		251,504	246,700
Financial Asset, Not Past Due [Member] | Credit Card Receivable [Member] | Commercial Portfolio Segment [Member]
Loans		25,943	24,122
Financial Asset, 30 to 59 Days Past Due [Member]
Loans		14,337	10,848
Financial Asset, 30 to 59 Days Past Due [Member] | Commercial Real Estate Portfolio Segment [Member]
Loans		2,224	816
Financial Asset, 30 to 59 Days Past Due [Member] | Commercial and Industrial Portfolio Segment [Member]
Loans		399	162
Financial Asset, 30 to 59 Days Past Due [Member] | Residential Real Estate Portfolio Segment [Member]
Loans		10,645	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		301	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		1,048	168
Financial Asset, 30 to 59 Days Past Due [Member] | Non-owner Occupied [Member] | Residential Real Estate Portfolio Segment [Member]
Loans		229	628
Financial Asset, 30 to 59 Days Past Due [Member] | Owner Occupied [Member] | Commercial Real Estate Portfolio Segment [Member]
Loans		1,176	648
Financial Asset, 30 to 59 Days Past Due [Member] | Owner Occupied [Member] | Residential Real Estate Portfolio Segment [Member]
Loans		10,416	7,737
Financial Asset, 30 to 59 Days Past Due [Member] | Term, Excluding PPP [Member] | Commercial and Industrial Portfolio Segment [Member]
Loans		132	103
Financial Asset, 30 to 59 Days Past Due [Member] | Lines of Credit [Member] | Commercial and Industrial Portfolio Segment [Member]
Loans		267	59
Financial Asset, 30 to 59 Days Past Due [Member] | Home Equity Line of Credit [Member]
Loans		621	424
Financial Asset, 30 to 59 Days Past Due [Member] | Credit Card Receivable [Member] | Commercial Portfolio Segment [Member]
Loans		147	220
Financial Asset, 60 to 89 Days Past Due [Member]
Loans		5,481	12,909
Financial Asset, 60 to 89 Days Past Due [Member] | Commercial Real Estate Portfolio Segment [Member]
Loans		5,033	5,125
Financial Asset, 60 to 89 Days Past Due [Member] | Commercial and Industrial Portfolio Segment [Member]
Loans		284	4,262
Financial Asset, 60 to 89 Days Past Due [Member] | Residential Real Estate Portfolio Segment [Member]
Loans		53	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		92	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		526	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		4,507	715
Financial Asset, 60 to 89 Days Past Due [Member] | Owner Occupied [Member] | Residential Real Estate Portfolio Segment [Member]
Loans		53	3,176
Financial Asset, 60 to 89 Days Past Due [Member] | Term, Excluding PPP [Member] | Commercial and Industrial Portfolio Segment [Member]
Loans		284	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		0	194
Financial Asset, 60 to 89 Days Past Due [Member] | Credit Card Receivable [Member] | Commercial Portfolio Segment [Member]
Loans		19	27
Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans		13,690	8,698
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Commercial Real Estate Portfolio Segment [Member]
Loans		5,671	361
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Commercial and Industrial Portfolio Segment [Member]
Loans		1,353	1,978
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Residential Real Estate Portfolio Segment [Member]
Loans		6,090	5,764
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Construction and Development [Member]
Loans		80	0
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Consumer Portfolio Segment [Member]
Loans		308	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		4,719	222
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Non-owner Occupied [Member] | Residential Real Estate Portfolio Segment [Member]
Loans		1,609	883
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Owner Occupied [Member] | Commercial Real Estate Portfolio Segment [Member]
Loans		952	139
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Owner Occupied [Member] | Residential Real Estate Portfolio Segment [Member]
Loans		4,481	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		1,353	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		0	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		188	171
Financial Asset, Past Due [Member]
Loans		33,508	32,455
Financial Asset, Past Due [Member] | Commercial Real Estate Portfolio Segment [Member]
Loans		12,928	6,302
Financial Asset, Past Due [Member] | Commercial and Industrial Portfolio Segment [Member]
Loans		2,036	6,402
Financial Asset, Past Due [Member] | Residential Real Estate Portfolio Segment [Member]
Loans		16,788	17,361
Financial Asset, Past Due [Member] | Construction and Development [Member]
Loans		80	391
Financial Asset, Past Due [Member] | Consumer Portfolio Segment [Member]
Loans		701	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		6,293	4,800
Financial Asset, Past Due [Member] | Non-owner Occupied [Member] | Residential Real Estate Portfolio Segment [Member]
Loans		1,838	1,567
Financial Asset, Past Due [Member] | Owner Occupied [Member] | Commercial Real Estate Portfolio Segment [Member]
Loans		6,635	1,502
Financial Asset, Past Due [Member] | Owner Occupied [Member] | Residential Real Estate Portfolio Segment [Member]
Loans		14,950	15,794
Financial Asset, Past Due [Member] | Term, Excluding PPP [Member] | Commercial and Industrial Portfolio Segment [Member]
Loans		1,769	4,802
Financial Asset, Past Due [Member] | Lines of Credit [Member] | Commercial and Industrial Portfolio Segment [Member]
Loans		267	1,600
Financial Asset, Past Due [Member] | Home Equity Line of Credit [Member]
Loans		621	733
Financial Asset, Past Due [Member] | Credit Card Receivable [Member] | Commercial Portfolio Segment [Member]
Loans		$ 354	$ 418
[1] (1) Total loans are presented inclusive of premiums, discounts and net loan origination fees and costs.

X

- 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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