Note 11 - Stockholders' Equity - Dividends Declared (Details) - Series D Preferred Stock [Member] - $ / shares |
3 Months Ended | |
|---|---|---|
Mar. 31, 2026 |
Mar. 31, 2025 |
|
| Distributions Declared (in dollars per share) | $ 0 | $ 0.58593 |
| O 2026 M1 Dividends [Member] | ||
| Distributions Declared (in dollars per share) | 0 | |
| O 2025 M1 Dividends [Member] | ||
| Distributions Declared (in dollars per share) | 0.19531 | |
| O 2026 M2 Dividends [Member] | ||
| Distributions Declared (in dollars per share) | 0 | |
| O 2025 M2 Dividends [Member] | ||
| Distributions Declared (in dollars per share) | 0.19531 | |
| O 2026 M3 Dividends [Member] | ||
| Distributions Declared (in dollars per share) | $ 0 | |
| O 2025 M3 Dividends [Member] | ||
| Distributions Declared (in dollars per share) | $ 0.19531 | |