Note 10 - Derivative Financial Instruments - Statement of Operations Information (Details) (Parentheticals) |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] | Gain (Loss) on Sales of Management Contracts | Gain (Loss) on Sales of Management Contracts | Gain (Loss) on Sales of Management Contracts |