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Note 15 - Mortgage Banking Activities - Notional amounts and Fair Values (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Mortgage loans held for sale, at carrying amount	$ 5,798	$ 6,199
Mortgage loans held for sale, at fair value	6,045	6,286
Derivative assets	619	12,437
Rate Lock Loan Commitments [Member]
Derivative assets	479	225
Mandatory Forward Contract [Member]
Derivative assets	13	56
Other Assets [Member] | Rate Lock Loan Commitments [Member]
Derivative, notional amount	12,838	7,138
Other Assets [Member] | Mandatory Forward Contract [Member]
Derivative, notional amount	$ 15,500	$ 9,000

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