Note 9 - Derivative Financial Instruments - Balance Sheet Information (Details) - USD ($) |
Jun. 30, 2026 |
Dec. 31, 2025 |
|---|---|---|
| Derivative financial instruments, fair value, net | $ 58,886,000 | $ 20,403,000 |
| TBA and Other Forward MBS [Member] | Long [Member] | ||
| Derivative financial instruments, fair value, net | 4,802,000 | 4,651,000 |
| TBA and Other Forward MBS [Member] | Short [Member] | ||
| Derivative financial instruments, fair value, net | (5,419,000) | (4,245,000) |
| Equity Derivatives [Member] | Long [Member] | Cohen & Company Capital Markets (CCM) [Member] | ||
| Derivative financial instruments, fair value, net | 56,990 | 18,492 |
| Equity Derivatives [Member] | Long [Member] | Non CCM [Member] | ||
| Derivative financial instruments, fair value, net | 2,593 | 1,505 |
| Equity Derivatives [Member] | Short [Member] | ||
| Derivative financial instruments, fair value, net | $ (80,000) | $ 0 |