v3.25.2
Note 8 - Warrants and Other Derivative Liabilities and Fair Value Measurements (Details Textual)
1 Months Ended 3 Months Ended 9 Months Ended
Aug. 04, 2025
Aug. 01, 2025
Jun. 02, 2025
Apr. 11, 2025
Feb. 18, 2025
Sep. 17, 2024
May 14, 2024
Dec. 21, 2023
Aug. 11, 2023
May 04, 2023
Aug. 31, 2025
Jun. 30, 2025
USD ($)
shares
Jun. 30, 2024
USD ($)
Jun. 30, 2025
USD ($)
shares
Jun. 30, 2024
USD ($)
Aug. 14, 2025
Feb. 28, 2025
$ / shares
Sep. 30, 2024
USD ($)
Warrants and Rights Outstanding                       $ 6,605,000,000   $ 6,605,000,000        
Gain (Loss) on Exchange of Warrants                       0 $ 0 (57,770,454) $ 0      
Financing Costs, Initial Recognition of Warrants                       $ 33,181,991 $ 17,914,480 70,366,183 $ 17,914,480      
Class of Warrant or Right, Exercised During Period, Fair Value                           $ 112,400,000        
Stock Issued During Period, Shares, Warrant Exercies (in shares) | shares                           80,911        
Class of Warrant or Right, Outstanding (in shares) | shares                                
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares) | shares                       101.1   101.1        
Reverse Stock Split [Member]                                    
Stockholders' Equity Note, Stock Split, Conversion Ratio 250   100 100 60 100   100 9 25                
Reverse Stock Split [Member] | Subsequent Event [Member]                                    
Stockholders' Equity Note, Stock Split, Conversion Ratio   250                 250              
Senior Secured Convertible Notes Warrants [Member]                                    
Warrants and Rights Outstanding, Term (Year)             5 years                      
Warrants and Rights, Value, Conversion Price, Percent             200.00%                      
Class of Warrants or Rights, Exercise Price, Closing Share Price Percentage             105.00%                      
Beneficial Owner, Ownership Percentage             9.90%         9.90%   9.90%        
Warrants and Rights, Exercise Price, Conversion Price, Percent             250.00%                      
Warrants and Rights, Percentage of Warrants Issued             72.00%                      
Warrants and Rights Outstanding                                   $ 79,700,000
Proceeds from Issuance of Warrants                           $ 62,500,000        
Class of Warrant or Right, Issued During Period, Fair Value                           134,700,000        
Financing Costs, Initial Recognition of Warrants                           70,400,000        
Senior Secured Convertible Notes Warrants [Member] | Subsequent Event [Member]                                    
Warrants and Rights Outstanding, Term (Year)                               5 years    
Senior Secured Convertible Notes Warrants [Member] | Measurement Input, Price Volatility [Member]                                    
Warrants and Rights Outstanding, Measurement Input             1.35                      
New Exchanged Warrants [Member]                                    
Warrants and Rights Outstanding, Term (Year)                                 5 years  
Class of Warrant or Right, Exercise Floor Price, Cashless Exercise (in dollars per share) | $ / shares                                 $ 0.01  
Gain (Loss) on Exchange of Warrants                       $ (57,800,000)            
Cashless Basis Warrants [Member]                                    
Warrants and Rights Outstanding                       $ 101,100,000   $ 101,100,000        
Class of Warrant or Right, Outstanding (in shares) | shares                       12,934.3443   12,934.3443        
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares) | shares                       936,399   936,399