Note 5 - Core Deposit and Customer List Intangible Assets - Changes in the Net Carrying Amount of Intangibles (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Amortization	$ (914)	$ (1,052)
Core Deposits [Member]
Balance at beginning of period	8,978	11,944
Amortization	(572)	(672)
Balance at end of period	8,406	11,272
Customer Lists [Member]
Balance at beginning of period	6,840	8,360
Amortization	(342)	(380)
Balance at end of period	$ 6,498	$ 7,980