v3.26.1
Note 9 - Temporary Equity and Stockholders' Equity (Deficit) (Details Textual) - USD ($)
 1 Months Ended 3 Months Ended 12 Months Ended
Sep. 09, 2025
Sep. 02, 2025
Jul. 07, 2025
Mar. 01, 2025
Aug. 24, 2024
Aug. 19, 2024
Sep. 30, 2021
Jul. 31, 2025
Apr. 30, 2025
Mar. 31, 2025
Dec. 31, 2022
Sep. 30, 2021
Mar. 31, 2026
Mar. 31, 2025
Dec. 31, 2025
Dec. 31, 2024
Jul. 11, 2025
Jul. 10, 2025
Temporary Equity, Shares Authorized (in shares)             30,000,000         30,000,000 30,000,000   30,000,000 30,000,000    
Temporary Equity, Stock Issued During Period, Shares, New Issues (in shares)                     791,857 10,000,000            
Temporary Equity, Proceeds Per Share (in dollars per share)             $ 1         $ 1            
Proceeds from Issuance or Sale of Equity                     $ 2,700,000   $ 2,100,000   $ 17,400,000      
Preferred Stock, Dividend Rate, Percentage                         12.00%   12.00%      
Preferred Stock, Original Issue Price (in dollars per share)                         $ 1   $ 1      
Preferred Stock, Dividends Per Share, Declared (in dollars per share)                         $ 0   $ 0      
Dividends Payable                         $ 0   $ 0 $ 7,000,000    
Temporary Equity, Shares Outstanding (in shares)                         0   0 18,406,857    
Common Stock, Shares Authorized (in shares)                         300,000,000   150,000,000 150,000,000 150,000,000 45,000,000
Common Stock, Par or Stated Value Per Share (in dollars per share)                         $ 0.0001   $ 0.0001 $ 0.0001    
Shares Issued, Price Per Share (in dollars per share)                 $ 1.42 $ 1.42       $ 1.42        
Stock Issued During Period, Shares, New Issues (in shares)                 695,277 352,852                
Proceeds from Issuance of Common Stock       $ 500,000         $ 1,000,000       $ 0 $ 500,000 $ 15,209,000 $ 0    
Unicorn Agreement [Member]                                    
Pre-IPO Financing Capital Raised           $ 5,000,000                        
Equity Received, Pre-IPO Services         2.00% 2.00%                        
Equity Received, Pre-IPO Services, Conditional Additional Percent           3.00%                        
Stock Issued During Period, Shares, Issued for Services (in shares)         1,342,650                          
Shares Issued, Price Per Share (in dollars per share)         $ 0.8                          
Conversion of Temporary Preferred Stock into Common [Member]                                    
Conversion of Stock, Shares Issued (in shares)     39,618,919                              
Conversion of Temporary Preferred Stock into Common [Member] | Series A1 Preferred Stock [Member]                                    
Temporary Equity, Shares Outstanding (in shares)                             18,406,857      
Series A1 Preferred Stock [Member]                                    
Preferred Stock, Convertible, Shares Issuable (in shares)                             39,618,919      
Conversion of Series A-1 Preferred Stock to Common Stock [Member]                                    
Conversion of Stock, Shares Issued (in shares)     39,619,919                              
Sindex SSI Financing, LLC [Member]                                    
Capital Raise                     $ 20,000,000              
Issued as Conversion Shares [Member]                                    
Temporary Equity, Stock Issued During Period, Shares, New Issues (in shares)             2,065,000                      
Temporary Equity, Proceeds Per Share (in dollars per share)             $ 1         $ 1            
Payment in Kind of Notes Payable [Member]                                    
Temporary Equity, Stock Issued During Period, Shares, New Issues (in shares)                     5,550,000              
Temporary Equity, Proceeds Per Share (in dollars per share)                     $ 1              
Temporary Equity, Gain (Loss) on Settlement                     $ 0              
Temporary Equity, Stock Issued During Period, Value, New Issues                     $ 5,600,000              
IPO [Member]                                    
Proceeds from Issuance or Sale of Equity   $ 12,900,000                                
Proceeds from Issuance or Sale of Equity, Gross   $ 17,000,000                         $ 25,000,000      
Shares Issued, Price Per Share (in dollars per share)   $ 4                                
Stock Issued During Period, Shares, New Issues (in shares)   4,250,000                                
Underwriter Commissions, Issuer Counsel, Expenses, Investor Relations, Promotions, and Other Expenses   $ 4,200,000                                
IPO [Member] | Conversion of 2023, 2024 Convertible Notes and Aggregated Notes into Common Stock [Member]                                    
Debt Conversion, Converted Instrument, Shares Issued (in shares)   19,634,860                                
Sale to Three Investors [Member]                                    
Shares Issued, Price Per Share (in dollars per share)               $ 1.32                    
Stock Issued During Period, Shares, New Issues (in shares)               568,184                    
Proceeds from Issuance of Common Stock               $ 750,000                    
Over-Allotment Option [Member]                                    
Proceeds from Issuance or Sale of Equity $ 2,400,000                                  
Proceeds from Issuance or Sale of Equity, Gross $ 2.6                                  
Shares Issued, Price Per Share (in dollars per share) $ 4                                  
Stock Issued During Period, Shares, New Issues (in shares) 637,500                                  
Underwriter Commissions and Expenses $ 0.2