Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity - Additional Information (Details)

v3.21.4
Stockholders' Equity - Additional Information (Details) - USD ($)
3 Months Ended 4 Months Ended
Oct. 22, 2021
Aug. 13, 2021
Jun. 05, 2020
Jun. 04, 2020
Nov. 30, 2021
Nov. 30, 2020
Nov. 30, 2020
Aug. 31, 2021
Jan. 31, 2020
Sep. 30, 2016
Class of Warrant or Right [Line Items]                    
Preferred stock, par or stated value per share (in dollars per share)         $ 0.0001     $ 0.0001   $ 0.0001
Convertible preferred stock, shares issued upon conversion (in shares)                   1
Stock options exercised (in shares)         0          
Share-based compensation arrangement by share-based payment award, options, forfeitures in period (in shares)         58,125          
Preferred options outstanding (in shares)         1,822,990     1,776,115    
Share-based compensation arrangement by share-based payment award, expiration period         10 years          
Proceeds from issuance of private placement         $ 4,183,000 $ 0        
Payments of stock issuance costs         $ 3,502,000 $ 0        
Chief Executive Officer | Scott W Absher                    
Class of Warrant or Right [Line Items]                    
Preferred stock, par or stated value per share (in dollars per share)   $ 0.0001                
Share-based compensation arrangement by share-based payment award, fair value assumptions, exercise price (in dollars per share)   $ 0.0001               $ 0.0001
Share-based compensation arrangement by share-based payment award, expiration period   24 months                
Share-based compensation arrangement by share-based payment award, assets or earning power threshold for option exercise   50.00%                
Convertible preferred stock, shares issuable upon conversion per preferred share (in shares)   1                
Preferred Stock Issued                    
Class of Warrant or Right [Line Items]                    
Stock options exercised (in shares)             294,490      
Preferred options outstanding (in shares)         37,570          
Preferred Stock Issued | Chief Executive Officer | Scott W Absher                    
Class of Warrant or Right [Line Items]                    
Stock options exercised (in shares)       12,500,000            
Number of options available for grant to founder shareholders (in shares)   12,500,000   12,500,000           12,500,000
Proceeds from issuance of preferred stock       $ 1,250            
Number option additionally available for grant to founder shareholders (in shares)     12,500,000              
Preferred Stock Issued | Founding Shareholder | J Stephen Holmes                    
Class of Warrant or Right [Line Items]                    
Share-based compensation arrangement by share-based payment award, options, forfeitures in period (in shares) 11,790,000                  
Stock Option | Chief Executive Officer | Scott W Absher                    
Class of Warrant or Right [Line Items]                    
Number of options available for grant to founder shareholders (in shares)                   25,000,000
Stock Option | Preferred Stock Issued                    
Class of Warrant or Right [Line Items]                    
Convertible preferred stock (in shares)                 24,634,560  
Common Share Units                    
Class of Warrant or Right [Line Items]                    
Shares issued upon conversion (in shares)             294,490      
Common shares lock up period             6 months      
Common Share Units | Chief Executive Officer | Scott W Absher                    
Class of Warrant or Right [Line Items]                    
Shares issued upon conversion (in shares)     12,500,000              
Common shares lock up period     24 months              
Private Placement                    
Class of Warrant or Right [Line Items]                    
Proceeds from issuance of private placement         $ 12,000,000          
Payments of stock issuance costs         $ 900,000          
Shares of common stock issued (in shares)         2,850,000          
Sale of stock, placement fee         7.00%          
Sale of stock, additional warrant offering as a percent of offering         5.00%          
Private Placement | Common Stock Warrants                    
Class of Warrant or Right [Line Items]                    
Warrants to acquire shares of common stock (in shares)         2,850,000          
Number of share of common stock per warrant (in shares)         1          
Exercise price of warrants (in dollars per share)         $ 1.595          
Sale of stock, stock and warrant price per share (in dollars per share)         $ 1.595          
Warrants term         5 years          
Private Placement | Pre-Funded Warrant                    
Class of Warrant or Right [Line Items]                    
Number of share of common stock per warrant (in shares)         1          
Exercise price of warrants (in dollars per share)         $ 0.0001          
Sale of stock, stock and warrant price per share (in dollars per share)         $ 1.5949          
Private Placement | Common Stock And Pre-Funded Warrants                    
Class of Warrant or Right [Line Items]                    
Warrants to acquire shares of common stock (in shares)         4,673,511          
Private Placement | Placement Warrants                    
Class of Warrant or Right [Line Items]                    
Exercise price of warrants (in dollars per share)         $ 1.7545          
Warrants term         4 years          
Warrants and rights outstanding, requisite exercise period         6 months