Note 13 - Derivatives and Hedging Activities (Details Textual) - USD ($) |
Jun. 30, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Interest Rate Swap [Member] | ||
| Debt Securities, Available-for-Sale, Amortized Cost | $ 240,900,000 | $ 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 | 1,000,000 | 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 | 861,000 | (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 | 56,400,000 | 56,700,000 |
| Credit Risk Derivatives, at Fair Value, Net | 1,872,000 | 32,000 |
| Derivative, Notional Amount | $ 151,872,000 | $ 150,032,000 |