Note 5 - Loans and ACL for Loans - Loans by Loan Portfolio Class (Details) - USD ($) $ in Thousands		Dec. 31, 2022	Dec. 31, 2021
Loans	[1]	$ 5,205,918	$ 4,169,303
Home Equity Line of Credit [Member]
Loans		200,725	138,976
Commercial Real Estate Portfolio Segment [Member]
Loans		2,231,975	1,806,649
Commercial Real Estate Portfolio Segment [Member] | Non-owner Occupied [Member]
Loans		1,397,346	1,128,244
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied [Member]
Loans		834,629	678,405
Commercial and Industrial Portfolio Segment [Member] | Term, Excluding PPP [Member]
Loans		765,163	596,710
Commercial and Industrial Portfolio Segment [Member] | Term [Member]
Loans		765,163
Commercial and Industrial Portfolio Segment [Member] | Term [Member] | Small Business Administration (SBA), CARES Act, Paycheck Protection Program [Member]
Loans		18,593	140,734
Commercial and Industrial Portfolio Segment [Member] | Lines of Credit [Member]
Loans		465,813	370,312
Total Commercial and Industrial Portfolio Segment [Member]
Loans		1,249,569	1,107,756
Residential Real Estate Portfolio Segment [Member]
Loans		904,763	681,713
Residential Real Estate Portfolio Segment [Member] | Non-owner Occupied [Member]
Loans		313,248	281,018
Residential Real Estate Portfolio Segment [Member] | Owner Occupied [Member]
Loans		591,515	400,695
Construction and Development [Member]
Loans		445,690	299,206
Consumer Portfolio Segment [Member]
Loans		139,461	104,294
Finance Leases Portfolio Segment [Member]
Loans		13,322	13,622
Credit Cards [Member]
Loans		$ 20,413	$ 17,087

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