Quarterly report pursuant to Section 13 or 15(d)

Equity Awards and Warrants - Private Placement of Shares of Common Stock and Warrants (Details)

v3.22.4
Equity Awards and Warrants - Private Placement of Shares of Common Stock and Warrants (Details) - USD ($)
 3 Months Ended 6 Months Ended 12 Months Ended
Aug. 31, 2022
Aug. 30, 2022
Feb. 14, 2022
Nov. 30, 2022
Aug. 31, 2022
Jun. 30, 2022
Nov. 30, 2021
 [1]
Aug. 31, 2021
 [1]
Nov. 30, 2022
Nov. 30, 2021
 [1]
May 31, 2022
Jan. 31, 2023
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                        
Exercise price of warrants, per share $ 0.255 $ 0.40     $ 0.255              
Warrant exercises (in shares)                 500,000      
Exercise of warrants for cash                 $ 300,000      
Cashless exercise of warrants, shares                 200,000      
Cashless exercise of warrants, warrants                 300,000      
Shares issued during the period new issues shares         4,600,000              
Change of fair value of liability-classified equity instrument upon reclassification         $ 8,601,000              
Common stock warrants to purchase shares 5,500,000       5,500,000              
Warrant covering common stock shares purchased, percentage 75.00% 50.00%                    
Placement agent fees and expenses           $ 2,800,000            
Incremental fair value of warrants         $ 4,200,000              
Warrants to purchase common shares, shares 5,500,000       5,500,000              
Number of warrants expiration extended                 3,800,000      
Proceeds from warrant exercises                 $ 264,000 $ 1,036,000    
Deemed dividends                 $ 500,000      
CytoDyn Inc. | David F Welch                        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                        
Ownership percentage       5.00%         5.00%      
Back Stop Warrant #1                        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                        
Exercise price of warrants, per share       $ 0.10         $ 0.10      
Common stock warrants to purchase shares       7,500,000         7,500,000      
Warrants to purchase common shares, shares       7,500,000         7,500,000      
Back Stop Warrant #2                        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                        
Exercise price of warrants, per share       $ 0.10         $ 0.10      
Common stock warrants to purchase shares       7,500,000         7,500,000      
Warrants to purchase common shares, shares       7,500,000         7,500,000      
Former CEO                        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                        
Compensation policy period                     18 months  
Shares issued during the period new issues shares                 380,704      
Former General Counsel                        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                        
Compensation policy period                     12 months  
Shares issued during the period new issues shares                 79,391      
Private Equity Offering                        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                        
Stock issued for private offerings         $ 17,544,000   $ 27,307,000 $ 2,872,000        
Accredited Investors                        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                        
Shares issued during the period new issues shares           85,400,000            
Stock issued for private offerings           $ 18,900,000            
Proceeds, net of issuance costs           $ 7,700,000            
Private Warrant Exchange [Member]                        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                        
Exercise price of warrants, per share       $ 1.00         $ 1.00      
Placement agent fees and expenses       $ 2,100,000                
Exercise of warrants, net of offering costs (in shares)       9,700,000                
Shares issued on warrant inducement       8,400,000                
Proceeds from warrant exercises       $ 2,100,000                
Deemed dividends       500,000                
Allotment to placement agent                        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                        
Exercise price of warrants, per share   $ 0.40       $ 0.255            
Common stock warrants to purchase shares           19,400,000            
Term of warrants           10 years            
Warrant covering common stock shares purchased, percentage           13.00%            
Placement agent fees and expenses           $ 50,000            
Warrants to purchase common shares, shares           19,400,000            
Second Private Placement                        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                        
Exercise price of warrants, per share           $ 0.306            
Exercise price of stock warrant combo, per share           $ 0.255            
Shares issued during the period new issues shares                     34,600,000  
Common stock warrants to purchase shares           64,000,000.0            
Term of warrants           5 years            
Number of common shares in a fixed combination issue of shares           1            
Number Of Warrants In Fixed Combination Issue Of Securities           1            
Warrant exercise price percentage of final unit price           120.00%            
Warrants to purchase common shares, shares           64,000,000.0            
Surety Bond Backstop Agreement                        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                        
Interest rate     10.00%                  
Period of Indemnification, Payment by Indemnitors     90 days                  
Indemnification Fee Payment Ratio     1.50%                  
Amount of cash collateral to be relieved of amount currently pledged       1,000,000         $ 1,000,000     $ 1,500,000
Amount of cash collateral to be relieved of amount currently pledged by Indemnity in support of Surety Bond       $ (5,000,000)         $ (5,000,000)      
Surety Bond Backstop Agreement | Four Good Warrants                        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                        
Exercise price of warrants, per share       $ 0.10         $ 0.10      
Term of warrants       5 years         5 years      
Initial Warrant                        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                        
Common stock warrants to purchase shares     15,000,000                  
Warrants to purchase common shares, shares     15,000,000                  
Make-Whole Warrant                        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                        
Common stock warrants to purchase shares     15,000,000                  
Warrants to purchase common shares, shares     15,000,000                  
Four Good Warrants                        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                        
Change of fair value of liability-classified equity instrument upon reclassification                     $ 6,600,000  
Maximum                        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                        
Exercise price of warrants, per share       $ 0.75         $ 0.75      
Warrant covering common stock shares purchased, percentage                 0.50%      
Maximum | Allotment to placement agent                        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                        
Exercise price of warrants, per share $ 0.306       $ 0.306              
Minimum                        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                        
Exercise price of warrants, per share       0.45         $ 0.45      
Cashless exercise of warrants, exercise price       $ 0.26         $ 0.26      
Minimum | Surety Bond Backstop Agreement                        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                        
Amount of cash collateral to be relieved of amount currently pledged       $ 1,500,000         $ 1,500,000      
[1] See Note 2, Summary of Significant Accounting Policies—Revision and Restatement of Financial Statements.