Note 18 - Derivative Instruments - Schedule of Cash Flow Hedging Instruments, Statements of Financial Performance and Financial Position, Location (Details) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended			12 Months Ended
	Jun. 30, 2025		Jun. 30, 2024	Jun. 30, 2025		Jun. 30, 2024	Dec. 31, 2024
Loans, including fees	$ 63,853		$ 41,663	$ 125,348		$ 80,958
Taxable	5,310		4,845	11,017		9,413
Total amounts in the Consolidated Statements of Income, Short-term Borrowings	3,982		7,053	6,821		13,042
Designated as Hedging Instrument [Member]
Loans, including fees	63,853		41,663	125,348		80,958
Taxable	5,310		4,845	11,017		9,413
Total amounts in the Consolidated Statements of Income, Short-term Borrowings	3,982		7,053	6,821		13,042
Mortgage-backed securities, Notional Amount	200,000			200,000			$ 200,000
Mortgage-backed securities, Carrying Amount	199,975			199,975			199,854
Mortgage-backed securities, Fair Value				(25)			(146)
Designated as Hedging Instrument [Member] | Residential Mortgage-Backed Securities [Member]
Mortgage-backed securities, Notional Amount	200,000	[1]		200,000	[1]		200,000	[2]
Mortgage-backed securities, Carrying Amount	199,975	[1]		199,975	[1]		199,854	[2]
Mortgage-backed securities, Fair Value				(25)	[1]		$ (146)	[2]
Designated as Hedging Instrument [Member] | Interest Rate Swap [Member] | Fair Value Hedging [Member] | Interest and Fee Income, Loans and Leases [Member]
Derivative, Gain (Loss) on Derivative, Net	0		168	0		321
Designated as Hedging Instrument [Member] | Interest Rate Swap [Member] | Fair Value Hedging [Member] | Interest Income, Securities, Operating, Taxable [Member]
Derivative, Gain (Loss) on Derivative, Net	143		659	291		1,301
Designated as Hedging Instrument [Member] | Interest Rate Swap [Member] | Fair Value Hedging [Member] | Interest Expense, Short-Term Borrowings [Member]
Derivative, Gain (Loss) on Derivative, Net	0		0	0		0
Designated as Hedging Instrument [Member] | Interest Rate Swap [Member] | Cash Flow Hedging [Member] | Interest and Fee Income, Loans and Leases [Member]
Derivative, Gain (Loss) on Derivative, Net	0		0	0		0
Designated as Hedging Instrument [Member] | Interest Rate Swap [Member] | Cash Flow Hedging [Member] | Interest Income, Securities, Operating, Taxable [Member]
Derivative, Gain (Loss) on Derivative, Net	0		0	0		0
Designated as Hedging Instrument [Member] | Interest Rate Swap [Member] | Cash Flow Hedging [Member] | Interest Expense, Short-Term Borrowings [Member]
Derivative, Gain (Loss) on Derivative, Net	$ 0		$ (270)	$ 721		$ (532)

[1] Includes amounts related to residential agency mortgage-backed securities currently designated as the hedged item in a fair value hedge using the portfolio layer method. At June 30, 2025, the amortized cost of the closed portfolios used in these hedging relationships was $281.6 million.

[2] Includes amounts related to residential agency mortgage-backed securities currently designated as the hedged item in a fair value hedge using the portfolio layer method. At December 31, 2024, the amortized cost of the closed portfolios used in these hedging relationships was $296.9 million.