Note 15 - Mortgage Banking Activities - Notional amounts and Fair Values (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Mortgage loans held for sale, at carrying amount	$ 4,671	$ 5,965
Mortgage loans held for sale, at fair value	4,822	6,056
Derivative assets	2,489	5,133
Rate Lock Loan Commitments [Member]
Derivative assets	377	174
Mandatory Forward Contract [Member]
Derivative, notional amount		6,750
Derivative assets	7
Derivative liabilities		(43)
Other Assets [Member] | Rate Lock Loan Commitments [Member]
Derivative, notional amount	10,545	$ 4,345
Other Assets [Member] | Mandatory Forward Contract [Member]
Derivative, notional amount	$ 13,500