v3.26.1
Fair Value Measurement - Summary of Company's Financial Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - USD ($)
$ in Thousands
Jun. 30, 2026
Sep. 30, 2025
Assets    
U.S. government treasury bills $ 49,403 $ 49,385
Total financial assets 124,548 199,757
Liabilities    
Liability for issuance of shares of common stock 5,000  
Total financial liabilities 5,000  
U.S. government treasury bills    
Assets    
U.S. government treasury bills 49,403 49,385
Money market funds    
Assets    
Money market funds 75,145 150,372
Level 1    
Assets    
Total financial assets 124,548 199,757
Liabilities    
Liability for issuance of shares of common stock 0  
Total financial liabilities 0  
Level 1 | U.S. government treasury bills    
Assets    
U.S. government treasury bills 49,403 49,385
Level 1 | Money market funds    
Assets    
Money market funds 75,145 150,372
Level 2    
Assets    
Total financial assets 0 0
Liabilities    
Liability for issuance of shares of common stock 0  
Total financial liabilities 0  
Level 2 | U.S. government treasury bills    
Assets    
U.S. government treasury bills 0 0
Level 2 | Money market funds    
Assets    
Money market funds 0 0
Level 3    
Assets    
Total financial assets 0 0
Liabilities    
Liability for issuance of shares of common stock 5,000  
Total financial liabilities 5,000  
Level 3 | U.S. government treasury bills    
Assets    
U.S. government treasury bills 0 0
Level 3 | Money market funds    
Assets    
Money market funds $ 0 $ 0