v3.26.1
Note 9 - Temporary Equity and Stockholders' Deficit (Details Textual) - USD ($)
1 Months Ended 2 Months Ended 3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2026
May 31, 2026
Apr. 30, 2025
Mar. 31, 2025
Mar. 31, 2026
Jun. 30, 2026
Apr. 30, 2026
Mar. 31, 2026
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Jul. 21, 2026
Jul. 07, 2025
Sep. 30, 2021
Temporary Equity, Shares Authorized (in shares) 30,000,000         30,000,000     30,000,000   30,000,000     30,000,000
Preferred Stock, Dividend Rate, Percentage                 12.00%          
Preferred Stock, Original Issue Price (in dollars per share) $ 1         $ 1     $ 1          
Preferred Stock, Dividends Per Share, Declared (in dollars per share)                 $ 0          
Dividends Payable $ 0         $ 0     $ 0   $ 0      
Temporary Equity, Shares Outstanding (in shares) 0         0     0   0      
Temporary Equity, Liquidation Preference $ 0         $ 0     $ 0   $ 0      
Common Stock, Shares Authorized (in shares) 300,000,000         300,000,000     300,000,000   300,000,000      
Common Stock, Par or Stated Value Per Share (in dollars per share) $ 0.0001         $ 0.0001     $ 0.0001   $ 0.0001 $ 0.0001    
Stock Issued During Period, Shares, New Issues (in shares)   333,333 13,906 7,057                    
Shares Issued, Price Per Share (in dollars per share)     $ 71 $ 71                    
Proceeds from Issuance of Common Stock     $ 1,000,000 $ 500,000         $ 0 $ 1,485,000        
Stock Issued During Period, Value, Conversion of Convertible Securities           $ 83,000                
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period (in shares)             45,198              
Proceeds from Stock Options Exercised             $ 60,000   59,000 $ 0        
Class of Warrant or Right, Exercised in Period (in shares)   20,000                        
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares)   333,333                        
Units Issued, Price Per Share (in dollars per share)   $ 15                        
Proceeds from Issuance or Sale of Equity   $ 5,000,000                        
Proceeds from Issuance or Sale of Equity, Net   3,060,000.00                        
Payments of Stock Issuance Costs   940,000                        
Extinguishment of Debt, Amount   $ 1,000,000                        
Conversion of Debt into Common Stock [Member]                            
Stock Issued During Period, Shares, Conversion of Convertible Securities (in shares)         27,607                  
Stock Issued During Period, Value, Conversion of Convertible Securities         $ 2,100,000 $ 1,859,000   $ 2,154,000            
Conversion Of Senior Secured Note Into Common Stock [Member]                            
Debt Conversion, Converted Instrument, Shares Issued (in shares)           173,512                
Debt Conversion, Original Debt, Amount           $ 1,650,000     $ 4,700,000          
Conversion Of Quick Capital Loan Into Common Stock [Member]                            
Shares Issued, Price Per Share (in dollars per share) $ 51.78         $ 51.78     $ 51.78          
Debt Conversion, Converted Instrument, Shares Issued (in shares) 1,603                          
Debt Conversion, Original Debt, Amount $ 560,000                          
Conversion of Series A-1 Preferred Stock to Common Stock [Member]                            
Temporary Equity, Shares Outstanding (in shares)                         18,406,857  
Preferred Stock, Convertible, Shares Issuable (in shares)                         792,378  
Conversion of Temporary Preferred Stock into Common [Member]                            
Preferred Stock, Convertible, Shares Issuable (in shares)                         792,378  
IPO [Member]                            
Proceeds from Issuance or Sale of Equity, Gross                     $ 25,000,000