Quarterly report pursuant to Section 13 or 15(d)

Equity Awards and Warrants - Stock options (Details)

v3.23.4
Equity Awards and Warrants - Stock options (Details) - $ / shares
shares in Thousands
 6 Months Ended 12 Months Ended
Nov. 30, 2023
Nov. 30, 2022
May 31, 2023
Additional Information      
Stock options grant date fair value $ 0.23 $ 0.34  
Tranche One [Member]      
Additional Information      
Stock option vested, Shares 10,900    
Award vesting period 4 years    
Tranche Two [Member]      
Additional Information      
Stock option vested, Shares 1,100    
Award vesting period 1 year    
Tranche Three      
Additional Information      
Stock option vested, Shares 400    
Stock Options      
Number of shares      
Outstanding, beginning of period 19,823    
Granted 500    
Forfeited, expired, and cancelled (692)    
Outstanding, end of period 19,631   19,823
Options exercisable (in shares) 14,187    
Weighted average exercise price      
Outstanding at the beginning of the year (in dollars per share) $ 0.99    
Granted 0.26    
Forfeited, expired, and cancelled 1.45    
Outstanding at the end of the year (in dollars per share) 0.96   $ 0.99
Options outstanding and exercisable $ 1.12    
Additional Information      
Weighted average remaining contractual life in years 7 years 5 months 15 days   7 years 10 months 13 days
Weighted average remaining contractual life in years exercisable 6 years 11 months 4 days    
Stock option granted, Shares 500 12,400