General form of registration statement for all companies including face-amount certificate companies

Equity Awards and Warrants - Stock options (Details)

v3.23.2
Equity Awards and Warrants - Stock options (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 1 Months Ended 9 Months Ended 12 Months Ended
Jul. 31, 2020
Feb. 28, 2023
Feb. 28, 2022
May 31, 2022
May 31, 2021
Number of shares          
Exercised       500  
Stock option and warrant activity          
Options and warrants outstanding, Number of Shares   90,705 60,774 60,774  
Granted, Number of Shares       50,205  
Exercised, Number of Shares       (5,677) (75,735)
Forfeited/expired/cancelled, Number of Shares       (14,597)  
Options and warrants outstanding, Number of Shares       90,705 60,774
Options and warrants outstanding and exercisable, Number of Shares       82,918  
Options and warrants outstanding, Weighted Average Exercise Price   $ 0.77 $ 0.95 $ 0.95  
Granted, Weighted Average Exercise Price       0.72  
Exercised, Weighted Average Exercise Price       0.71  
Forfeited/expired/cancelled, Weighted Average Exercise Price       1.36  
Options and warrants outstanding, Weighted Average Exercise Price       0.77 $ 0.95
Options and warrants outstanding and exercisable, Weighted Average Exercise Price       $ 0.69  
Options and warrants outstanding, Weighted Average Remaining Contractual Life in Years       4 years 21 days 4 years 4 months 13 days
Options and warrants outstanding and exercisable, Weighted Average Remaining Contractual Life in Years       3 years 7 months 9 days  
Options and warrants outstanding, Aggregate Intrinsic Value       $ 352 $ 68,061
Award vesting period   4 years      
Stock options grant date fair value   $ 0.34 $ 1.09    
Share-based Compensation $ 1,600 $ 3,557 $ 4,219 [1] $ 6,239 $ 10,429
Tranche One [Member]          
Stock option and warrant activity          
Stock option vested, Shares   10,900      
Tranche Two [Member]          
Stock option and warrant activity          
Stock option vested, Shares   1,100      
Award vesting period   1 year      
Tranche Three          
Stock option and warrant activity          
Stock option vested, Shares   400      
Stock Options          
Number of shares          
Outstanding, beginning of period   17,457      
Granted   12,417      
Forfeited, expired, and cancelled   (7,783)      
Outstanding, end of period   22,091   17,457  
Options exercisable (in shares)   12,698      
Weighted average exercise price          
Outstanding at the beginning of the year (in dollars per share)   $ 1.53      
Granted   0.41      
Forfeited, expired, and cancelled   1.16      
Outstanding at the end of the year (in dollars per share)   1.02   $ 1.53  
Options outstanding and exercisable   $ 1.28      
Additional Information          
Weighted average remaining contractual life in years   8 years 1 month 13 days   7 years 9 months 14 days  
Weighted average remaining contractual life in years exercisable   7 years 1 month 24 days      
Stock option and warrant activity          
Stock option granted, Shares   12,400 11,300    
Award vesting period       3 years  
[1] See Note 2, Summary of Significant Accounting Policies—Revision and Restatement of Financial Statements.