Note 17 - Derivatives and Hedging Activities (Details Textual) - USD ($)	Dec. 31, 2025	Dec. 31, 2024
Interest Rate Swap [Member]
Debt Securities, Available-for-Sale, Amortized Cost	$ 213,300,000	$ 258,100,000
Derivative, Notional Amount	50,000,000	50,000,000
Derivative Liability, Fair Value of Collateral	3,500,000
Asset-Backed Securities [Member]
Credit Risk Derivatives, at Fair Value, Net	980,000	220,000
Asset-Backed Securities [Member] | Interest Rate Swap [Member]
Derivative, Notional Amount	50,000,000	50,000,000
Closed Portfolio of Loans Receivable [Member]
Credit Risk Derivatives, at Fair Value, Net	903,000	(188,000)
Closed Portfolio of Loans Receivable [Member] | Interest Rate Swap [Member]
Derivative, Notional Amount	100,000,000	100,000,000
Designated as Hedging Instrument [Member]
Debt Securities, Available-for-Sale, Amortized Cost	56,100,000	56,700,000
Credit Risk Derivatives, at Fair Value, Net	1,883,000	32,000
Derivative, Notional Amount	$ 151,883,000	$ 150,032,000