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Note 3 - Summary of Significant Accounting Policies (Details Textual) | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2025 USD ($) | Sep. 30, 2024 USD ($) | Sep. 30, 2025 USD ($) | Sep. 30, 2024 USD ($) | Dec. 31, 2024 USD ($)
Impairment of Marketable Securities | $ 0 | $ 0 | $ 0 | $ 0 |
Debt Securities, Available-for-Sale, Allowance for Credit Loss | 0 |  | 0 |  | $ 0
Deferred Offering Costs | $ 269,331 |  | $ 269,331 |  | $ 0
Share-Based Compensation Arrangement by Share-Based Payment Award, Expiration Period |  |  | 10 years |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Dividend Rate |  |  | 0.00% |  |
Number of Operating Segments |  |  | 1 |  |
Number of Reportable Segments |  |  | 1 |  |

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