Annual report pursuant to Section 13 and 15(d)

Equity Awards and Warrants - Schedule of Assumptions (Details)

v3.23.2
Equity Awards and Warrants - Schedule of Assumptions (Details)
12 Months Ended
May 31, 2023
May 31, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Expected Volatility, Minimum 99.20% 94.30%
Expected Volatility, Maximum 112.70% 122.00%
Weighted-Average Volatility 107.06% 104.89%
Expected Dividends 0.00% 0.00%
Risk-Free Rate 3.83% 1.67%
Minimum    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Expected Term (In years) 5 years 1 year 6 months
Maximum    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Expected Term (In years) 6 years 1 month 6 days 6 years