Note 15 - Mortgage Banking Activities - Notional amounts and Fair Values (Details) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Mortgage loans held for sale, at carrying amount	$ 6,844	$ 6,199
Mortgage loans held for sale, at fair value	7,797	6,286
Derivative assets	5,290	12,437
Rate Lock Loan Commitments [Member]
Derivative assets	595	225
Mandatory Forward Contract [Member]
Derivative, notional amount	17,250	0
Derivative assets	0	56
Mandatory forward contracts	86	0
Other Assets [Member] | Rate Lock Loan Commitments [Member]
Derivative, notional amount	14,207	7,138
Other Assets [Member] | Mandatory Forward Contract [Member]
Derivative, notional amount	$ 0	$ 9,000