v3.26.1
Note 6 - Secured Promissory Notes (Details Textual) - USD ($)
Sep. 30, 2026
May 29, 2026
Jan. 21, 2026
Dec. 01, 2026
May 31, 2026
Dec. 31, 2025
Commitment Warrants [Member]            
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares)     361,665      
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)     $ 1.5      
Original Warrants [Member]            
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares)     148,000      
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)     $ 1.5      
Warrants and Rights Outstanding     $ 149,635      
Interim Warrants [Member]            
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares)         120,125  
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)         $ 1.5  
Warrants and Rights Outstanding         $ 63,660  
Loan Agreement With the Initial Lenders [Member]            
Debt Instrument, Face Amount     500,000   $ 675,000 $ 500,000
Proceeds from Issuance of Debt     1,000,000      
Loan Agreement With the Initial Lenders [Member] | Forecast [Member]            
Proceeds from Issuance of Debt $ 600,000          
Loan Agreement With Related Party and Director [Member] | Related Party and Director [Member]            
Debt Instrument, Face Amount   $ 300,000 200,000      
Loan Agreement with Four Lenders [Member] | Maximum [Member]            
Debt Instrument, Face Amount     $ 1,600,000      
Loan Agreement Amendment With the Lenders [Member]            
Proceeds from Issuance of Debt   675,000        
Debt Instrument, Fee Percentage     1.50% 1.50%    
Debt Instrument, Covenant, Equity Financing Threshold     $ 5,000,000      
Debt Instrument, Covenant, Prepayment Fee Percentage     2.75%      
Loan Agreement Amendment With the Lenders [Member] | Maximum [Member]            
Debt Instrument, Face Amount   $ 2,000,000        
Initial Notes [Member]            
Debt Instrument, Interest Rate, Stated Percentage     10.00%      
Initial Notes [Member] | Forecast [Member]            
Debt Instrument, Interest Rate, Stated Percentage 12.00%          
Interim Notes [Member]            
Debt Instrument, Interest Rate, Stated Percentage   12.00%        
Second Notes [Member] | Forecast [Member]            
Debt Instrument, Interest Rate, Stated Percentage 12.00%