v3.26.3
Equity Incentive Plan - Stock options (Details) - Stock Options - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 3 Months Ended 12 Months Ended
Aug. 31, 2026
May 31, 2026
Number of shares    
Options outstanding at the beginning of the period 50,156  
Granted 1,400  
Exercised 0  
Forfeited, expired, and cancelled (50)  
Options outstanding at the end of the period 51,506 50,156
Options outstanding and exercisable (in shares) 28,422  
Weighted average exercise price    
Options outstanding at the beginning of the period (in dollars per share) $ 0.36  
Granted (in dollars per share) 0.22  
Exercised (in dollars per share) 0  
Forfeited, expired, and cancelled (in dollars per share) 1.09  
Options outstanding at the end of the period (in dollars per share) 0.36 $ 0.36
Options outstanding and exercisable (in dollars per share) $ 0.4  
Additional Information    
Weighted average remaining contractual life in years 7 years 8 months 26 days 7 years 11 months 19 days
Weighted average remaining contractual life in years exercisable 6 years 8 months 19 days  
Aggregate intrinsic value in outstanding $ 1,455 $ 3,146
Aggregate intrinsic value in outstanding and exercisable $ 1,101