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Note 12 - Subsequent Events (Details Textual) - USD ($) | Oct. 18, 2025 | Oct. 15, 2025 | Oct. 23, 2024 | Oct. 17, 2024 | Oct. 07, 2024 | Sep. 30, 2024 | Dec. 31, 2023
--- | --- | --- | --- | --- | --- | --- | ---
Debt Instrument, Face Amount |  |  |  |  |  | $ 705,970,000 | $ 615,000,000
Subsequent Event [Member] | The 2031 Convertible Notes [Member] |  |  |  |  |  |  |
Debt Instrument, Face Amount |  |  |  | $ 20,000,000 |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  | 7.125% |  |  |
Debt Instrument, Convertible, Conversion Price (in dollars per share) |  |  |  | $ 25 |  |  |
Proceeds from Convertible Debt |  |  |  | $ 18,600,000 |  |  |
Debt Instrument, Maturity Date |  |  |  | Oct. 16, 2031 |  |  |
Subsequent Event [Member] | Venture Loan and Security Agreement [Member] | CAMP NYC, Inc [Member] |  |  |  |  |  |  |
Proceeds from Sale, Maturity and Collection of Investments |  |  | $ 2,000,000 |  |  |  |
Standvast Holdings, LLC [Member] | Debt Securities [Member] | Subsequent Event [Member] |  |  |  |  |  |  |
Payments to Acquire Investments |  |  |  |  | $ 2,500,000 |  |
Swift Health Systems Inc. [Member] | Debt Securities [Member] | Forecast [Member] |  |  |  |  |  |  |
Payments to Acquire Investments |  | $ 600,000 |  |  |  |  |
Better Place Forests Co. [Member] | Debt Securities [Member] | Forecast [Member] |  |  |  |  |  |  |
Payments to Acquire Investments | $ 500,000 |  |  |  |  |  |

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