General form for registration of securities under the Securities Act of 1933

Equity Incentive Plan - Restricted Stock Units ("RSUs") and Performance Stock Units ("PSU"s) (Details)

v3.26.1
Equity Incentive Plan - Restricted Stock Units ("RSUs") and Performance Stock Units ("PSU"s) (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 1 Months Ended 9 Months Ended 12 Months Ended
May 31, 2025
Feb. 28, 2026
Feb. 28, 2025
May 31, 2025
May 31, 2024
May 31, 2023
Weighted average grant date fair value            
Expected to be recognized over weighted-average period       1 year 6 months    
Share-Based Payment Arrangement, Noncash Expense   $ 807 $ 1,013 $ 1,612 $ 2,415  
RSU and PSU            
Number of shares            
Beginning shares   3,500     1,293  
Granted (in shares)       3,500    
Forfeited (in shares)         (1,293)  
Ending shares 3,500     3,500   1,293
Weighted average grant date fair value            
Beginning   $ 0.41     $ 0.58  
Grant       $ 0.41    
Forfeited         $ 0.58  
Ending $ 0.41     $ 0.41   $ 0.58
Weighted average remaining contractual life in years       1 year 9 months   9 months 21 days
Performance target level percentage for non-vested equity-based payment instruments       100.00%    
Unrecognized compensation expense $ 1,400     $ 1,400    
Expected to be recognized over weighted-average period       1 year 9 months    
PSU            
Number of shares            
Beginning shares   3,500        
Granted (in shares)       3,500    
Ending shares 3,500 3,500   3,500    
Weighted average grant date fair value            
Beginning   $ 0.41        
Ending $ 0.41 $ 0.41   $ 0.41    
Weighted average remaining contractual life in years   1 year   1 year 9 months    
Performance target level percentage for non-vested equity-based payment instruments   100.00%        
Unrecognized compensation expense   $ 1,400        
Expected to be recognized over weighted-average period   1 year        
PSU | Maximum            
Weighted average grant date fair value            
Performance target level percentage for non-vested equity-based payment instruments 100.00% 100.00%        
PSU | Minimum            
Weighted average grant date fair value            
Performance target level percentage for non-vested equity-based payment instruments 0.00% 0.00%        
Stock Options and Warrants            
Weighted average grant date fair value            
Unrecognized compensation expense $ 1,700     $ 1,700    
Vested during the period, grant date fair value       1,300 $ 3,300  
Equity Instruments | Selling, General and Administrative Expenses            
Weighted average grant date fair value            
Share-Based Payment Arrangement, Noncash Expense       $ 1,300 $ 2,400