Quarterly report pursuant to Section 13 or 15(d)

Equity Awards and Warrants - Restricted Stock Units ("RSUs") and Performance Stock Units ("PSU"s) (Details)

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Equity Awards and Warrants - Restricted Stock Units ("RSUs") and Performance Stock Units ("PSU"s) (Details) - RSU and PSU - $ / shares
shares in Thousands
9 Months Ended 12 Months Ended
Feb. 29, 2024
May 31, 2023
Number of shares    
Beginning shares 1,293  
Forfeited (in shares) (1,293)  
Ending shares   1,293
Weighted average grant date fair value    
Beginning $ 0.58  
Forfeited $ 0.58  
Ending   $ 0.58
Weighted average remaining contractual life in years 0 years 9 months 21 days
Performance target level percentage for non-vested equity-based payment instruments 100.00%