Note 2 - Mortgage-backed Securities, at Fair Value - Gain (Loss) on Investments (Details) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2026 |
Sep. 30, 2025 |
Sep. 30, 2026 |
Sep. 30, 2025 |
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| Sales and maturities | $ 769,781 | $ 733,904 | ||
| Carrying value of RMBS sold | (768,857) | (743,192) | ||
| Realized gains (losses) on mortgage-backed securities | $ 0 | $ 0 | 924 | (9,288) |
| Gross gain on sales of RMBS | 924 | 0 | ||
| Gross loss on sales of RMBS | $ 0 | $ (9,288) | ||
| X | ||||||||||
- Definition Amount represents the carrying value of investments sold No definition available.
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- Definition Amount of proceeds from sales of investments No definition available.
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- Definition The difference between the carrying value and the sale price of an investment. A gain would be recognized when the sale price of the investment is greater than the carrying value of the investment. This element refers to the Gain included in earnings and not to the cash proceeds of the sale. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition The difference between the carrying value and the sale price of an investment. A loss would be recognized when the sale price of the investment is less than the carrying value of the investment. This element refers to the Loss included in earnings and not to the cash proceeds of the sale. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Amount of realized gain (loss) on investment. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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