Quarterly report pursuant to Section 13 or 15(d)

Equity Awards - Activity (Details)

v3.22.2.2
Equity Awards - Activity (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 12 Months Ended
Aug. 31, 2022
May 31, 2022
Derivative Liability [Abstract]    
Derivative liability (beginning balance)  
Classified as liability due to lack of shares availability at issuance 14,522  
Classified as equity upon increase in availability (23,123)  
Loss on derivative due to change in fair market value 8,601  
Derivative liability (ending balance)
Stock option and warrant activity    
Options and warrants outstanding, Number of Shares 90,705  
Granted, Number of Shares 104,104  
Exercised, Number of Shares (863)  
Forfeited/expired/cancelled, Number of Shares (484)  
Options and warrants outstanding, Number of Shares 193,462 90,705
Options and warrants outstanding and exercisable, Number of Shares 187,896  
Options and warrants outstanding, Weighted Average Exercise Price $ 0.77  
Granted, Weighted Average Exercise Price 0.25  
Exercised, Weighted Average Exercise Price 0.49  
Forfeited/expired/cancelled, Weighted Average Exercise Price 1.57  
Options and warrants outstanding, Weighted Average Exercise Price 0.48 $ 0.77
Options and warrants outstanding and exercisable, Weighted Average Exercise Price $ 0.45  
Options and warrants outstanding, Weighted Average Remaining Contractual Life in Years 4 years 4 months 9 days 4 years 21 days
Options and warrants outstanding and exercisable, Weighted Average Remaining Contractual Life in Years 4 years 2 months 26 days  
Options and warrants outstanding, Aggregate Intrinsic Value $ 36,758 $ 352
Options and warrants outstanding and exercisable, Aggregate Intrinsic Value $ 36,717  
Stock option vested, Shares 11,900,000  
Options outstanding, nonvested 5,300,000  
Loss on derivatives $ 8,601