Note 5 - Premises and Equipment and Premises Held for Sale - Balance Sheet, Income Statement, and Cash Flow Detail Regarding Operating Leases (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Premises and equipment, net	Premises and equipment, net
Operating lease cost	$ 4,241	$ 3,338	$ 3,077
Cash paid for operating lease liabilities	4,672	4,063	3,833
Right-of-use operating lease asset	29,695	21,007
Variable lease cost	$ 345	$ 313	237
Operating Lease, Liability, Statement of Financial Position [Extensible Enumeration]	Other liabilities	Other liabilities
Operating lease liability	$ 31,194	$ 22,487
Less sublease income	$ 102	$ 101	96
Weighted average remaining lease term (years) (Year)	10 years 9 months 18 days	9 years 9 months 18 days
Total lease cost	$ 4,484	$ 3,550	$ 3,218
Weighted average discount rate	3.69%	2.84%
One year or less	$ 3,955	$ 3,365
Year two	3,869	2,864
Year three	3,881	2,543
Year four	3,924	2,536
Year five	3,794	2,547
Greater than five years	19,120	12,059
Total lease payments	38,543	25,914
Less imputed interest	$ 7,349	$ 3,427