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v3.23.3

Note 6 - Long-term Debt (Details Textual) |  |  |  | 3 Months Ended | 9 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Jun. 22, 2022 USD ($) $ / shares shares | Mar. 01, 2022 USD ($) | Apr. 08, 2021 USD ($) $ / shares shares | Sep. 30, 2023 USD ($) $ / shares shares | Sep. 30, 2022 USD ($) | Sep. 30, 2023 USD ($) $ / shares shares | Sep. 30, 2022 USD ($) | Oct. 13, 2023 USD ($) | May 26, 2023 $ / shares | Dec. 31, 2022 USD ($) $ / shares
Stock Issued During Period, Shares, Issued for Commitment Fee (in shares) | shares |  |  | 10,000 |  |  |  |  |  |  |
Common Stock, Par or Stated Value Per Share (in dollars per share) | $ / shares |  |  | $ 0.001 | $ 0.001 |  | $ 0.001 |  |  | $ 0.001 | $ 0.001
Senior Promissory Notes Placement Agent Warrants [Member] |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares) | shares | 28,846 |  |  |  |  |  |  |  |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ / shares | $ 5.2 |  |  |  |  |  |  |  |  |
Warrants and Rights Outstanding, Term (Year) | 5 years |  |  |  |  |  |  |  |  |
The 2023 Warrants [Member] |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares) | shares |  |  |  | 531,250 |  | 531,250 |  |  |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ / shares |  |  |  | $ 5.2 |  | $ 5.2 |  |  |  |
Warrants and Rights Outstanding, Term (Year) |  |  |  | 5 years |  | 5 years |  |  |  |
Senior Promissory Notes [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument, Face Amount | $ 6,000,000 |  |  | $ 6,000,000 |  | $ 6,000,000 |  |  |  | $ 6,000,000
Interest Expense, Debt |  |  |  | 0 | $ 0 | 0 | $ 0 |  |  |
Amortization of Debt Issuance Costs |  |  |  | 86,447 | 84,098 | 257,765 | 90,989 |  |  |
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares) | shares | 531,250 |  |  |  |  |  |  |  |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ / shares | $ 5.2 |  |  |  |  |  |  |  |  |
Warrants and Rights Outstanding, Term (Year) | 5 years |  |  |  |  |  |  |  |  |
Debt Instrument, Term (Month) | 24 months |  |  |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage | 10.00% |  |  |  |  |  |  |  |  |
Debt Instrument, Stated Rate, Monthly Increase if Unpaid | 1.00% |  |  |  |  |  |  |  |  |
Debt Instrument, Unamortized Discount | $ 695,749 |  |  | 1,455,127 |  | 1,455,127 |  |  |  | $ 519,686
Senior Promissory Notes [Member] | Subsequent Event [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument, Unamortized Discount |  |  |  |  |  |  |  | $ 1,193,206 |  |
Senior Promissory Notes [Member] | Measurement Input, Expected Term [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument, Measurement Input | 2.5 |  |  |  |  |  |  |  |  |
Senior Promissory Notes [Member] | Measurement Input, Expected Term [Member] | Subsequent Event [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument, Measurement Input |  |  |  |  |  |  |  | 5 |  |
Senior Promissory Notes [Member] | Measurement Input, Share Price [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument, Measurement Input | 3.44 |  |  |  |  |  |  |  |  |
Senior Promissory Notes [Member] | Measurement Input, Share Price [Member] | Subsequent Event [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument, Measurement Input |  |  |  |  |  |  |  | 3.89 |  |
Senior Promissory Notes [Member] | Measurement Input, Exercise Price [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument, Measurement Input | 5.2 |  |  |  |  |  |  |  |  |
Senior Promissory Notes [Member] | Measurement Input, Exercise Price [Member] | Subsequent Event [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument, Measurement Input |  |  |  |  |  |  |  | 5.2 |  |
Senior Promissory Notes [Member] | Measurement Input, Price Volatility [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument, Measurement Input | 0.808 |  |  |  |  |  |  |  |  |
Senior Promissory Notes [Member] | Measurement Input, Price Volatility [Member] | Subsequent Event [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument, Measurement Input |  |  |  |  |  |  |  | 0.7366 |  |
Senior Promissory Notes [Member] | Measurement Input, Risk Free Interest Rate [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument, Measurement Input | 0.0313 |  |  |  |  |  |  |  |  |
Senior Promissory Notes [Member] | Measurement Input, Risk Free Interest Rate [Member] | Subsequent Event [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument, Measurement Input |  |  |  |  |  |  |  | 0.046 |  |
Senior Promissory Notes [Member] | Measurement Input, Forfeiture Rate [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument, Measurement Input | 0 |  |  |  |  |  |  |  |  |
Senior Promissory Notes [Member] | Measurement Input, Forfeiture Rate [Member] | Subsequent Event [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument, Measurement Input |  |  |  |  |  |  |  | 0 |  |
Senior Promissory Notes [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage | 16.00% |  |  |  |  |  |  |  |  |
Convertible Debt [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument, Face Amount |  |  | $ 15,000,000 |  |  |  |  |  |  |
Debt Instrument, Redemption Price, Percentage |  |  | 112.00% |  |  |  |  |  |  |
Debt Instrument, Convertible, Conversion Ratio |  |  | 805.3992 |  |  |  |  |  |  |
Debt Instrument, Periodic Payment, Principal |  | $ 840,000 |  |  |  |  |  |  |  |
Debt Instrument, Redemption Covenant, Floor Price (in dollars per share) | $ / shares |  |  | $ 14 |  |  |  |  |  |  |
Repayments of Convertible Debt | $ 13,446,875 | $ 840,000 |  |  |  |  |  |  |  |
Repayments of Convertible Debt, Principal | 11,640,000 |  |  |  |  |  |  |  |  |
Repayments of Convertible Debt, Premium | $ 1,806,875 |  |  |  |  |  |  |  |  |
Interest Expense, Debt |  |  |  | 0 |  | 0 | 308,958 |  |  |
Amortization of Debt Issuance Costs |  |  |  | $ 0 | $ 0 | $ 0 | $ 2,213,065 |  |  |

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