General form of registration statement for all companies including face-amount certificate companies

Equity Awards and Warrants - Stock Options and Other Equity Awards (Details)

v3.24.0.1
Equity Awards and Warrants - Stock Options and Other Equity Awards (Details) - $ / shares
shares in Thousands
3 Months Ended 6 Months Ended 12 Months Ended
Feb. 13, 2023
Nov. 30, 2023
Aug. 31, 2023
Aug. 31, 2022
Nov. 30, 2023
Nov. 30, 2022
May 31, 2023
May 31, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Stock options grant date fair value         $ 0.23 $ 0.34    
Options outstanding, vested             12,000 9,900
Options outstanding, nonvested             7,800 7,500
Shares issued during the period new issues shares 400              
Common Stock                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Warrant exercises (in shares)     3,000 657     1,898 1,642
Shares issued during the period new issues shares   21,453            
Management, Employees And Consultants [Member]                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Stock option granted, Shares             1,800  
Management, Employees And Consultants [Member] | Maximum                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Stock option granted, exercise price             $ 0.67  
Stock options grant date fair value             0.54  
Management, Employees And Consultants [Member] | Minimum                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Stock option granted, exercise price             0.35  
Stock options grant date fair value             0.29  
Stock Options                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Stock option granted, exercise price         $ 0.26   $ 0.41 $ 1.38
Stock options exercised, exercise price               $ 0.79
Stock option granted, Shares         500 12,400    
Stock Options | Management, Employees And Consultants [Member]                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Options term             10 years  
Award vesting period             4 years  
Restricted Stock Units (RSUs) [Member] | Executives                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Issuance of common stock upon vesting of stock based compensation awards, shares             200