Note 4 - Loans and ACL for Loans - Loans by Loan Portfolio Class (Details) - USD ($) $ in Thousands		Dec. 31, 2024	Dec. 31, 2023
Loans	[1]	$ 6,520,402	$ 5,771,038
Home Equity Line of Credit [Member]
Loans		247,433	211,390
Credit Card Receivable [Member]
Loans		24,540	23,632
Commercial Real Estate Portfolio Segment [Member]
Loans		2,838,788	2,469,113
Commercial Real Estate Portfolio Segment [Member] | Non-owner Occupied [Member]
Loans		1,835,935	1,561,689
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied [Member]
Loans		1,002,853	907,424
Commercial and Industrial Portfolio Segment [Member]
Loans		884,399	867,380
Commercial and Industrial Portfolio Segment [Member] | Lines of Credit [Member]
Loans		554,255	439,748
Total Commercial and Industrial Portfolio Segment [Member]
Loans		1,438,654	1,307,128
Residential Real Estate Portfolio Segment [Member]
Loans		1,187,824	1,067,608
Residential Real Estate Portfolio Segment [Member] | Non-owner Occupied [Member]
Loans		382,744	358,715
Residential Real Estate Portfolio Segment [Member] | Owner Occupied [Member]
Loans		805,080	708,893
Construction and Development [Member]
Loans		623,005	531,324
Consumer Portfolio Segment [Member]
Loans		144,644	145,340
Finance Leases Portfolio Segment [Member]
Loans		$ 15,514	$ 15,503

[1] Total loans are presented inclusive of premiums, discounts and net loan origination fees and costs.