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Note 10 - Long-term Debt (Details Textual)
12 Months Ended
Jun. 22, 2022
USD ($)
$ / shares
shares
Mar. 01, 2022
USD ($)
Apr. 08, 2021
USD ($)
$ / shares
shares
Dec. 31, 2023
USD ($)
$ / shares
Dec. 31, 2022
USD ($)
$ / shares
Oct. 13, 2023
USD ($)
Sep. 30, 2023
$ / shares
shares
May 26, 2023
$ / 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
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  
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  
Senior Promissory Notes [Member]                
Debt Instrument, Face Amount $ 6,000,000     $ 6,000,000 $ 6,000,000      
Interest Expense, Debt       0 0      
Amortization of Debt Issuance Costs       400,903 176,063      
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, Total $ 695,749     1,311,989 519,686 $ 1,193,206    
Senior Promissory Notes [Member] | Measurement Input, Expected Term [Member]                
Debt Instrument, Measurement Input 2.5         5    
Senior Promissory Notes [Member] | Measurement Input, Share Price [Member]                
Debt Instrument, Measurement Input 3.44         3.89    
Senior Promissory Notes [Member] | Measurement Input, Exercise Price [Member]                
Debt Instrument, Measurement Input 5.2         5.2    
Senior Promissory Notes [Member] | Measurement Input, Price Volatility [Member]                
Debt Instrument, Measurement Input 0.808         73.66    
Senior Promissory Notes [Member] | Measurement Input, Risk Free Interest Rate [Member]                
Debt Instrument, Measurement Input 0.0313         4.6    
Senior Promissory Notes [Member] | Measurement Input, Forfeiture Rate [Member]                
Debt Instrument, Measurement Input 0         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              
Repayments of Convertible Debt, Principal 11,640,000              
Repayments of Convertible Debt, Premium $ 1,806,875              
Interest Expense, Debt       0 308,958      
Amortization of Debt Issuance Costs       $ 0 $ 2,213,065