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Note 4 - Convertible Notes Payable (Details Textual) - USD ($)
3 Months Ended 9 Months Ended
Mar. 08, 2024
Sep. 30, 2024
Jun. 30, 2024
Sep. 30, 2023
Sep. 30, 2024
Sep. 30, 2023
Debt Conversion, Original Debt, Amount         $ 600,000 $ 0
Stock Issued During Period, Value, Conversion of Convertible Securities   $ 200,000 $ 400,000 $ 281,307    
Stock Issued During Period, Shares, Conversion of Convertible Securities (in shares)         335,195  
Conversion Of Convertible Notes Into Common Stock [Member]            
Debt Conversion, Original Debt, Amount         $ 600,000  
Debt Conversion, Converted Instrument, Shares Issued (in shares)         335,195  
Related Party [Member]            
Interest Expense, Nonoperating   $ 39,344   $ (0) $ 102,632 $ (0)
Senior Secured 2024 Notes [Member]            
Debt Instrument, Face Amount $ 6,000,000          
Debt Instrument, Interest Rate, Stated Percentage 8.00% 8.00%     8.00%  
Debt Instrument, Convertible, Conversion Price (in dollars per share) $ 1.4          
Debt Issuance Costs, Gross $ 175,674          
Debt Instrument, Term (Year) 3 years          
Interest Payment   $ 114,933     $ 149,778  
Interest Expense, Nonoperating   17,244        
Debt Issuance Costs, Net   26,394     $ 26,394  
Stock Issued During Period, Value, Conversion of Convertible Securities   $ 400,000        
Stock Issued During Period, Shares, Conversion of Convertible Securities (in shares)   223,463     335,195  
Senior Secured 2024 Notes [Member] | Conversion Of Convertible Notes Into Common Stock [Member] | Bradley Scott Emalfarb [Member]            
Debt Conversion, Original Debt, Amount         $ 200,000  
Debt Conversion, Converted Instrument, Shares Issued (in shares)         111,732  
Senior Secured 2024 Notes [Member] | Maximum [Member]            
Debt Instrument, Interest Rate, Stated Percentage 8.00%          
Senior Secured 2024 Notes [Member] | Related Party [Member]            
Debt Instrument, Face Amount $ 2,000,000 $ 2,000,000     $ 2,000,000  
Interest Payable   28,000     $ 28,000  
Debt Conversion, Converted Instrument, Shares Issued (in shares)         600,000  
Senior Secured 2024 Notes [Member] | Third Party [Member]            
Debt Instrument, Face Amount   4,000,000     $ 4,000,000  
Interest Payable   80,000     80,000  
The Francisco Trust [Member]            
Debt Instrument, Face Amount   $ 1,000,000     $ 1,000,000  
Debt Instrument, Interest Rate, Stated Percentage   8.00%     8.00%  
The Francisco Trust [Member] | Mr. Thomas Emalfarb [Member]            
Interest Payable   $ 20,000     $ 20,000  
Irrevocable Trust [Member] | Bradley Scott Emalfarb [Member]            
Debt Instrument, Face Amount   $ 410,000     $ 410,000  
Debt Instrument, Interest Rate, Stated Percentage   8.00%     8.00%  
Interest Payable   $ 4,200     $ 4,200  
Debt Conversion, Converted Instrument, Shares Issued (in shares)         200,000  
Irrevocable Trust [Member] | Bradley Emalfarb [Member]            
Debt Instrument, Face Amount   $ 500,000     $ 500,000  
Debt Instrument, Interest Rate, Stated Percentage   8.00%     8.00%  
Interest Payable   $ 2,000     $ 2,000  
Irrevocable Trust [Member] | Thomas Emalfarb, Scott Emalfarb and Michael Emalfarb [Member]            
Interest Payable   $ 1,800     $ 1,800  
Irrevocable Trust [Member] | Conversion Of Convertible Notes Into Common Stock [Member] | Bradley Emalfarb [Member]            
Debt Conversion, Converted Instrument, Shares Issued (in shares)         400,000