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Note 5 - Derivative and Other Hedging Instruments - Schedule of Derivative Instruments in Balance Sheet (Details) - USD ($) $ in Thousands | Dec. 31, 2025 | Dec. 31, 2024
--- | --- | ---
Restricted Cash and Cash Equivalent, Current | $ 58,696 | $ 25,723
TBA securities | (1,567) | (5,395)
Not Designated as Hedging Instrument, Economic Hedge [Member] |  |
Derivative assets, at fair value | 9,252 | 9,277
Derivative liabilities, at fair value | 1,846 | 332
Total margin balances on derivative contracts | 7,165 | (1,377)
Not Designated as Hedging Instrument, Economic Hedge [Member] | Interest Rate Swap [Member] |  |
Derivative assets, at fair value | 8,237 | 4,574
Not Designated as Hedging Instrument, Economic Hedge [Member] | TBA Contracts [Member] |  |
Derivative assets, at fair value | 1,015 | 4,703
Derivative liabilities, at fair value | 1,846 | 332
Restricted Cash and Cash Equivalent, Current | 2,394 | 280
TBA securities | (360) | (4,282)
Not Designated as Hedging Instrument, Economic Hedge [Member] | Eurodollar Future Margin [Member] |  |
Restricted Cash and Cash Equivalent, Current | $ 5,131 | $ 2,625

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