Quarterly report pursuant to Section 13 or 15(d)

Equity Awards and Warrants - Equity Incentive Plan (Details)

v3.23.1
Equity Awards and Warrants - Equity Incentive Plan (Details)
shares in Millions, $ in Millions
3 Months Ended 9 Months Ended
May 31, 2023
shares
Aug. 31, 2022
shares
Feb. 28, 2023
USD ($)
Feb. 28, 2022
USD ($)
Feb. 28, 2023
USD ($)
plan
Feb. 28, 2022
USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Number of active plans | plan         1  
Number of inactive plans | plan         1  
General and Administrative Expenses            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Stock based compensation | $     $ 0.4 $ (0.4) $ 3.5 $ 4.2
2012 Equity Incentive Plan            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Number of shares authorized for issuance 34.3          
Increase in number of shares authorized   350.0        
Shares reallocated to be used for general purposes 22.0          
Percentage of share outstanding 1.00%          
Shares available for future stock-based grants 3.9          
2012 Equity Incentive Plan | Management, Employees And Consultants            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Shares available for future stock-based grants   22.0