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Note 11 - Derivative Financial Instruments - Fair Value Hedges (Details) - Designated as Hedging Instrument [Member] - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Interest Rate Swap [Member]
Interest rate swaps, Fair value, assets	$ 680	$ 891
Interest rate swaps, Fair value, liabilities	(461)	(411)
Customer interest rate swaps, fair value	680	891
Customer interest rate swaps, fair value	461	411
Customer Interest Rate Swaps [Member]
Interest rate swaps, Fair value, assets	417	334
Interest rate swaps, Fair value, liabilities	417	334
Customer interest rate swaps, fair value	417	334
Customer interest rate swaps, fair value	(417)	(334)
Other Assets [Member] | Interest Rate Swap [Member]
Interest rate swaps	8,633	8,930
Customer interest rate swaps	8,633	8,930
Other Assets [Member] | Customer Interest Rate Swaps [Member]
Interest rate swaps	12,310	11,353
Customer interest rate swaps	$ 12,310	$ 11,353
Customer interest rate swaps, receive rate	7.11%	7.36%
Customer interest rate swaps, pay rate	5.81%	5.62%
Other Liabilities [Member] | Interest Rate Swap [Member]
Interest rate swaps	$ 25,000	$ 25,000
Customer interest rate swaps	25,000	25,000
Other Liabilities [Member] | Customer Interest Rate Swaps [Member]
Interest rate swaps	12,310	11,353
Customer interest rate swaps	$ 12,310	$ 11,353
Customer interest rate swaps, receive rate	5.81%	5.62%
Customer interest rate swaps, pay rate	7.11%	7.36%

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- Definition

Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset.

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