Note 5 - Premises and Equipment and Premises Held for Sale - Summary of Premises and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Premises and equipment, gross	$ 155,861	$ 142,603
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Total premises and equipment	Total premises and equipment
Right-of-use operating lease asset	$ 29,695	$ 21,007
Accumulated depreciation and amortization	(43,125)	(41,429)
Total premises and equipment	112,736	101,174
Land [Member]
Premises and equipment, gross	22,360	22,517
Building and Building Improvements [Member]
Premises and equipment, gross	73,369	71,695
Furniture and Equipment [Member]
Premises and equipment, gross	25,358	24,602
Construction in Progress [Member]
Premises and equipment, gross	$ 5,079	$ 2,782