Note 7 - Promissory Notes Due to 3i, LP ("3i") (Details Textual) - The 2024 3i Convertible Senior Promissory Notes [Member] - USD ($) |
Mar. 14, 2024 |
Feb. 13, 2024 |
Jan. 18, 2024 |
|---|---|---|---|
| Debt Instrument, Interest Rate, Stated Percentage | 8.00% | ||
| First Note [Member] | |||
| Debt Instrument, Face Amount | $ 440,000 | ||
| Debt Instrument, Convertible, Conversion Price (in dollars per share) | $ 268.5 | ||
| Debt Instruments Aggregate Purchase Price | $ 400,000 | ||
| Debt Instrument, Discount Percent | 10.00% | ||
| Second Note [Member] | |||
| Debt Instrument, Face Amount | $ 4,400,000 | ||
| Debt Instrument, Convertible, Conversion Price (in dollars per share) | $ 243 | ||
| Debt Instruments Aggregate Purchase Price | $ 400,000 | ||
| Debt Instrument, Discount Percent | 10.00% | ||
| Third Note [Member] | |||
| Debt Instrument, Face Amount | $ 660,000 | ||
| Debt Instrument, Convertible, Conversion Price (in dollars per share) | $ 210 | ||
| Debt Instruments Aggregate Purchase Price | $ 600,000 | ||
| Debt Instrument, Discount Percent | 10.00% |