Note 7 - Core Deposit and Customer List Intangible Assets - Changes in the Net Carrying Amount of Intangibles (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Amortized to expense	$ (4,485)	$ (4,686)	$ (5,544)
Core Deposits [Member]
Balance at beginning of period	11,944	14,958	5,596
Added from acquisition	0	0	12,724
Provisional period adjustment	0	0	0
Amortized to expense	(2,966)	(3,014)	(3,362)
Balance at end of period	8,978	11,944	14,958
Customer Lists [Member]
Balance at beginning of period	8,360	10,032	0
Added from acquisition	0	0	14,360
Disposition of LFA	0	0	(2,146)
Amortized to expense	(1,520)	(1,672)	(2,182)
Balance at end of period	$ 6,840	$ 8,360	$ 10,032