v3.26.1
Stock-Based Compensation and Equity Grants - Stock Option Activity (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 9 Months Ended 12 Months Ended
Jun. 30, 2026
Sep. 30, 2025
Number of Shares    
Options outstanding, beginning (in shares) 937  
Granted (in shares) 250  
Exercised (in shares) 0  
Cancelled (in shares) (92)  
Options outstanding, ending (in shares) 1,095 937
Weighted Average Exercise Price    
Options outstanding, beginning (in dollars per share) $ 9.65  
Granted (in dollars per share) 5.86  
Exercised (in dollars per share) 0  
Cancelled (in dollars per share) 10.57  
Options outstanding, ending (in dollars per share) $ 8.70 $ 9.65
Weighted Average Remaining Contractual Term    
Weighted Average Remaining Contractual Term, Outstanding 6 years 1 month 6 days 5 years 7 months 6 days
Weighted Average Remaining Contractual Term, Granted 5 years 2 months 12 days  
Aggregate Intrinsic Value    
Aggregate Intrinsic Value $ 0 $ 10
Vested and exercisable (in shares) 810  
Vested and exercisable, weighted average exercise price (in dollars per share) $ 9.48  
Vested and exercisable, weighted average remaining contractual term (in years) 4 years 8 months 12 days  
Vested and exercisable, intrinsic value $ 0