v3.26.1
Fair Value Measurements - Assumptions (Details)
9 Months Ended
Jun. 30, 2026
USD ($)
Y
$ / shares
May 31, 2026
USD ($)
May 27, 2026
$ / shares
May 26, 2026
$ / shares
Sep. 30, 2025
$ / shares
Y
March 2025 Note          
Fair value inputs          
Debt instrument, redemption cap amount | $ $ 3,000,000        
Share price     $ 0.59 $ 0.4  
Unsecured promissory note | $   $ 0      
Remaining contractual term of warrants (years) | Unsecured Convertible Promissory Note          
Fair value inputs          
Debt inputs | Y         0.8
Remaining contractual term of warrants (years) | March 2026 Note          
Fair value inputs          
Debt inputs | Y 0.96        
Volatility | Unsecured Convertible Promissory Note          
Fair value inputs          
Debt inputs         1.18
Risk-free rate | Unsecured Convertible Promissory Note          
Fair value inputs          
Debt inputs         0.038
Dividend yield | Unsecured Convertible Promissory Note          
Fair value inputs          
Debt inputs         0
Credit-adjusted discount rate | Unsecured Convertible Promissory Note          
Fair value inputs          
Debt inputs         0.188
Stock price (in dollars per share) | Unsecured Convertible Promissory Note          
Fair value inputs          
Debt inputs         1.06
Credit spread | March 2026 Note          
Fair value inputs          
Debt inputs 0.241        
Final redemption value | March 2026 Note          
Fair value inputs          
Debt inputs 122.2