Post-effective amendment to a registration statement that is not immediately effective upon filing

Private Placements of Common Stock and Warrant exercises - Tender Offer and Warrants (Details)

v3.25.3
Private Placements of Common Stock and Warrant exercises - Tender Offer and Warrants (Details) - USD ($)
$ / shares in Units, $ in Thousands, shares in Millions
3 Months Ended 12 Months Ended
Jul. 19, 2024
Aug. 31, 2025
May 31, 2025
May 31, 2024
Share-based Compensation        
Common stock warrants to purchase shares 127.1      
Exercise price of share $ 0.09387      
Gross proceeds from warrant exercises $ 11,900      
Net proceeds from warrant exercises $ 10,400      
Shares issued during the period new issues shares 25.4      
Placement agent fees and expenses $ 1,400      
Percentage of gross proceeds 13.00%      
Legal fees $ 100      
Fair value of exercised warrants 1,700     $ 236
Fair value due to repricing $ 400      
Exercise of warrants for cash, shares     10.4  
Exercise of warrants for cash     $ 1,100  
Cashless exercise of warrants, shares   23.1 1.9  
Cashless exercise of warrants, warrants   32.5 2.6  
Cashless exercise of warrants, exercise price   $ 0.09387 $ 0.09387  
Maximum        
Share-based Compensation        
Exercise price of share     0.21  
Minimum        
Share-based Compensation        
Exercise price of share     $ 0.1