v3.26.1
Note 9 - Temporary Equity and Stockholders' Deficit -10-Q (Details Textual) - USD ($)
1 Months Ended 2 Months Ended 3 Months Ended 12 Months Ended
Sep. 02, 2025
Jul. 07, 2025
Mar. 01, 2025
Apr. 30, 2025
Mar. 31, 2025
Mar. 31, 2026
Mar. 31, 2026
Mar. 31, 2025
Dec. 31, 2025
Dec. 31, 2024
Jul. 11, 2025
Jul. 10, 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%   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   $ 0        
Dividends Payable           $ 0 $ 0   $ 0 $ 7,000,000      
Temporary Equity, Shares Outstanding (in shares)           0 0   0 18,406,857      
Temporary Equity, Liquidation Preference           $ 0 $ 0   $ 0 $ 25,405,000      
Common Stock, Shares Authorized (in shares)           300,000,000 300,000,000   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 $ 0.0001      
Stock Issued During Period, Shares, New Issues (in shares)       695,277 352,852                
Shares Issued, Price Per Share (in dollars per share)       $ 1.42 $ 1.42     $ 1.42          
Proceeds from Issuance of Common Stock     $ 500,000 $ 1,000,000     $ 0 $ 500,000 $ 15,209,000 $ 0      
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period (in shares)           183,510              
Proceeds from Stock Options Exercised           $ 42,000 42,000          
Conversion of Debt into Common Stock [Member]                          
Stock Issued During Period, Shares, Conversion of Convertible Securities (in shares)           1,380,359              
Stock Issued During Period, Value, Conversion of Convertible Securities           $ 2,100,000 $ 2,154,000            
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                      
IPO [Member]                          
Proceeds from Issuance or Sale of Equity, Gross $ 17,000,000               $ 25,000,000        
Stock Issued During Period, Shares, New Issues (in shares) 4,250,000                        
Shares Issued, Price Per Share (in dollars per share) $ 4