Quarterly report pursuant to Section 13 or 15(d)

Subsequent Events (Details)

v3.22.4
Subsequent Events (Details) - USD ($)
$ / shares in Units, $ in Thousands
 1 Months Ended 6 Months Ended
Apr. 02, 2021
Jan. 31, 2023
Dec. 31, 2022
Nov. 30, 2022
Nov. 30, 2021
 [1]
Aug. 31, 2022
Aug. 30, 2022
Subsequent Event [Line Items]              
Class of warrants, exercise price           $ 0.255 $ 0.40
Warrant exercises (in shares)       500,000      
Proceeds from warrant exercises       $ 264 $ 1,036    
April 2, 2021 Note              
Subsequent Event [Line Items]              
Convertible note, aggregate principal $ 28,500     $ 9,300      
Conversion of preferred stock to common stock (in shares) 25,300,000            
Minimum              
Subsequent Event [Line Items]              
Class of warrants, exercise price       $ 0.45      
Maximum              
Subsequent Event [Line Items]              
Class of warrants, exercise price       $ 0.75      
Warrant exchange agreement              
Subsequent Event [Line Items]              
Restricted cash       $ 200      
Subsequent Event | April 2, 2021 Note              
Subsequent Event [Line Items]              
Convertible note, aggregate principal     $ 8,300        
Subsequent Event | December partitioned notes              
Subsequent Event [Line Items]              
Convertible note, aggregate principal     $ 1,000        
Conversion of preferred stock to common stock (in shares)     4,700,000        
Subsequent Event | Warrant exchange agreement | Accredited investors warrants              
Subsequent Event [Line Items]              
Warrant exercises (in shares)     3,400,000        
Shares issued on warrant inducement     600,000        
Proceeds from warrant exercises     $ 700        
Subsequent Event | Warrant exchange agreement | Accredited investors warrants | Minimum              
Subsequent Event [Line Items]              
Class of warrants, exercise price     $ 0.50        
Subsequent Event | Warrant exchange agreement | Accredited investors warrants | Maximum              
Subsequent Event [Line Items]              
Class of warrants, exercise price     $ 0.75        
Subsequent Event | January offering              
Subsequent Event [Line Items]              
Offering costs for stock issuance   $ 15,000          
Number of shares per unit   1          
Number of warrants per unit   1          
Number of shares per warrant   1          
[1] See Note 2, Summary of Significant Accounting Policies—Revision and Restatement of Financial Statements.