Post-effective amendment to a registration statement that is not immediately effective upon filing

Equity Incentive Plan - Stock options (Details)

v3.25.3
Equity Incentive Plan - Stock options (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
3 Months Ended 12 Months Ended
Aug. 31, 2025
May 31, 2025
May 31, 2024
May 31, 2023
Weighted average exercise price        
Granted (in dollars per share) $ 0.26      
Stock Options        
Number of shares        
Options outstanding at the beginning of the period 38,324 25,849 19,823  
Granted 725 13,025 14,251  
Exercised (100) (500)    
Forfeited, expired, and cancelled (480) (50) (8,225)  
Options outstanding at the end of the period 38,469 38,324 25,849 19,823
Options outstanding and exercisable (in shares) 29,787 28,594    
Weighted average exercise price        
Options outstanding at the beginning of the period (in dollars per share) $ 0.46 $ 0.6 $ 0.99  
Granted (in dollars per share) 0.3 0.17 0.21  
Exercised (in dollars per share) 0.21 0.21    
Forfeited, expired, and cancelled (in dollars per share) 1.93 0.66 0.87  
Options outstanding at the end of the period (in dollars per share) 0.44 0.46 $ 0.6 $ 0.99
Options outstanding and exercisable (in dollars per share) $ 0.46 $ 0.54    
Additional Information        
Weighted average remaining contractual life in years 7 years 6 months 7 years 7 months 24 days 7 years 9 months 7 days 7 years 10 months 13 days
Weighted average remaining contractual life in years exercisable 7 years 3 days 7 years 2 months 23 days    
Aggregate intrinsic value in exercised $ 6 $ 72    
Aggregate intrinsic value in outstanding 3,035 4,039    
Aggregate intrinsic value in outstanding and exercisable $ 2,079 $ 2,653    
Stock option granted, Shares 700