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Note 5 - Convertible Notes Payable - Convertible Debt (Details) - USD ($) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2024 | Mar. 08, 2024
Conversion Of Convertible Notes Into Common Stock [Member] |  |  |
Conversion to common stock (in shares) |  | (556,623) |
The Francisco Trust [Member] |  |  |
Issuance date | [1] | Mar. 08, 2024 |
Due date | [1] | Mar. 08, 2027 |
Interest rate | [1] | 8.00% |
Convertible note principal | [1] | $ 1,000,000 |
Principal outstanding | [1] | $ 1,000,000 |
Irrevocable Trust [Member] | Bradley Emalfarb [Member] |  |  |
Issuance date | [2] | Mar. 08, 2024 |
Due date | [2] | Mar. 08, 2027 |
Interest rate | [2] | 8.00% |
Convertible note principal | [2] | $ 500,000 |
Principal outstanding | [2] | $ 0 |
Irrevocable Trust [Member] | Bradley Emalfarb [Member] | Conversion Of Convertible Notes Into Common Stock [Member] |  |  |
Conversion to common stock (in shares) | [2] | (500,000) |
Irrevocable Trust [Member] | Bradley Scott Emalfarb [Member] |  |  |
Issuance date | [2] | Mar. 08, 2024 |
Due date | [2] | Mar. 08, 2027 |
Interest rate | [2] | 8.00% |
Convertible note principal | [2] | $ 410,000 |
Principal outstanding | [2] | $ 0 |
Conversion to common stock (in shares) | [2] | (410,000) |
Irrevocable Trust [Member] | Bradley Scott Emalfarb [Member] | Conversion Of Convertible Notes Into Common Stock [Member] |  |  |
Conversion to common stock (in shares) |  | (261,732) |
Descendant Trust [Member] |  |  |
Issuance date | [3] | Mar. 08, 2024 |
Due date | [3] | Mar. 08, 2027 |
Interest rate | [3] | 8.00% |
Convertible note principal | [3] | $ 90,000 |
Principal outstanding | [3] | $ 90,000 |
Senior Secured 2024 Notes [Member] |  |  |
Interest rate |  | 8.00% | 8.00%
Convertible note principal |  |  | $ 6,000,000
Senior Secured 2024 Notes [Member] | Related Party [Member] |  |  |
Convertible note principal |  | $ 2,000,000 | $ 2,000,000
Principal outstanding |  | $ 1,090,000 |
Conversion to common stock (in shares) |  | (910,000) |
Unamortized Debt Issuance Costs - Related Party |  | $ (24,124) |
Net Carrying Amount |  | $ 1,065,876 |
Senior Secured 2024 Notes [Member] | Third Party [Member] |  |  |
Issuance date |  | Mar. 08, 2024 |
Due date |  | Mar. 08, 2027 |
Convertible note principal |  | $ 4,000,000 |
Principal outstanding |  | 4,000,000 |
Unamortized Debt Issuance Costs - Related Party |  | (88,529) |
Net Carrying Amount |  | $ 3,911,471 |
Senior Secured 2024 Notes [Member] | Bradley Scott Emalfarb [Member] | Conversion Of Convertible Notes Into Common Stock [Member] |  |  |
Conversion to common stock (in shares) |  | (294,891) |
[1] | Mr. Thomas Emalfarb, nephew of Mr. Mark A. Emalfarb, our President and Chief Executive Officer, is the Trustee of the Francisco Trust. Mr. Thomas Emalfarb may be deemed to have voting, dispositive and investment power with respect to the shares of common stock held by the Francisco Trust and disclaims any such beneficial ownership other than to the extent of any pecuniary interest he may have therein, directly or indirectly. The amount of accrued interest as of December 31, 2024, is $20,000.
[2] | Mark A. Emalfarb, our President and Chief Executive Officer, is the Trustee of the Irrevocable Trust and the brother of Mr. Bradley S. Emalfarb, who is the sole beneficiary of the Irrevocable Trust. Mr. Bradley S. Emalfarb, as sole beneficiary of the Irrevocable Trust, therefore, may be deemed to have voting, dispositive and investment power with respect to the shares of common stock held by the Irrevocable Trust and disclaims any such beneficial ownership other than to the extent of any pecuniary interest he may have therein, directly or indirectly. For the year ended December 31, 2024, $500,000 of the Convertible Notes held by Mr. Bradley S. Emalfarb were converted into 294,891 shares of the Company’s common stock. For the year ended December 31, 2024, $410,000 of the Convertible Notes held by Bradley Scott Emalfarb Irrevocable Trust were converted into 261,732 shares of the Company’s common stock. As of December 31, 2024, the amount of accrued interest for Bradley Emalfarb and Bradley Scott Emalfarb Irrevocable Trust was $1,733 and $3,640, respectively.
[3] | Messrs. Thomas Emalfarb, Scott Emalfarb and Michael Emalfarb, nephews of Mr. Mark A. Emalfarb, our President and Chief Executive Officer, are co-trustees of the Descendant Trust and may therefore be deemed to have shared voting, dispositive and investment power over the shares of common stock held by the Descendant Trust. The amount of accrued interest as of December 31, 2024, is $1,800.

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