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Note 2 - Going Concern and Liquidity (Details Textual) - USD ($) | 1 Months Ended | 3 Months Ended |
--- | --- | --- | ---
Apr. 30, 2025 | Mar. 31, 2025 | Mar. 31, 2024 | Dec. 31, 2024
Retained Earnings (Accumulated Deficit) |  | $ (130,047,692) |  | $ (128,053,106)
Operating Income (Loss) |  | (1,997,853) | $ (1,465,068) |
Cash, Cash Equivalents, and Marketable Securities |  | 2,200,000 |  |
Working Capital |  | 4,200,000 |  |
Cash Provided by (Used in) Operating Activity, Including Discontinued Operation |  | $ (1,008,089) | $ (1,218,128) |
Mr. Neal Goldman, Ms. Benedetta Casamento, and Dr. Didier Demesmin [Member] | Promissory Note [Member] | Forecast [Member] |  |  |  |
Proceeds from Issuance of Debt | $ 800,000 |  |  |

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