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CONSOLIDATED STATEMENTS OF CONVERTIBLE PREFERRED STOCK AND STOCKHOLDERS’ EQUITY (DEFICIT) - USD ($)
$ in Thousands
Total
Cumulative Effect, Period of Adoption, Adjustment
Series D
Series E
Common Stock
Class A Common Stock
Common Stock
Class B Common Stock
Additional Paid-In Capital
Accumulated Other Comprehensive Income (Loss)
Accumulated Deficit
Accumulated Deficit
Cumulative Effect, Period of Adoption, Adjustment
Stockholders' equity, beginning balance (in shares) at Dec. 31, 2018         0 48,918,160        
Stockholders' equity, beginning balance at Dec. 31, 2018 $ (334) $ 755     $ 0 $ 5 $ 52,297 $ (252) $ (52,384) $ 755
Increase (Decrease) in Stockholders' Equity [Roll Forward]                    
Exercise of stock options (in shares)           1,021,985        
Exercise of stock options 588           588      
Issuance of common stock (in shares)           3,750,000        
Issuance of common stock 113           113      
Vesting of common stock warrants 191           191      
Stock-based compensation 4,133           4,133      
Comprehensive income (loss) (37)             (37)    
Net loss (14,527)               (14,527)  
Stockholders' equity, ending balance (in shares) at Dec. 31, 2019         0 53,690,145        
Stockholders' equity, ending balance at Dec. 31, 2019 $ (9,118)       $ 0 $ 5 57,322 (289) (66,156)  
Temporary equity, beginning balance (in shares) at Dec. 31, 2018 60,239,135                  
Temporary equity, beginning balance at Dec. 31, 2018 $ 77,331                  
Increase (Decrease) in Temporary Equity [Roll Forward]                    
Issuance of Preferred Stock (net of issuance costs) (in shares)     1,947,880              
Issuance of Preferred Stock (net of issuance costs)     $ 24,971              
Temporary equity, ending balance (in shares) at Dec. 31, 2019 62,187,015                  
Temporary equity, ending balance at Dec. 31, 2019 $ 102,302                  
Increase (Decrease) in Stockholders' Equity [Roll Forward]                    
Exercise of stock options (in shares)           492,604        
Exercise of stock options 440           440      
Repurchase of unvested common stock shares (in shares)           (499,480)        
Vesting of common stock warrants 192           192      
Stock-based compensation 6,594           6,594      
Comprehensive income (loss) 2,245             2,245    
Net loss (25,860)               (25,860)  
Stockholders' equity, ending balance (in shares) at Dec. 31, 2020         0 53,683,269        
Stockholders' equity, ending balance at Dec. 31, 2020 $ (25,507)       $ 0 $ 5 64,548 1,956 (92,016)  
Increase (Decrease) in Temporary Equity [Roll Forward]                    
Issuance of Preferred Stock (net of issuance costs) (in shares)     155,209 8,648,695            
Issuance of Preferred Stock (net of issuance costs)     $ 1,922 $ 99,825            
Temporary equity, ending balance (in shares) at Dec. 31, 2020 70,990,919   2,103,089 8,648,695            
Temporary equity, ending balance at Dec. 31, 2020 $ 204,049   $ 26,893 $ 99,825            
Increase (Decrease) in Stockholders' Equity [Roll Forward]                    
Conversion of convertible preferred stock to Class B common stock upon IPO (in shares)           70,990,919        
Conversion of convertible preferred stock to Class B common stock upon IPO 204,049         $ 7 204,042      
Reclassification of preferred stock warrant liability to additional paid-in capital due to conversion to Class B common stock upon IPO (in shares)           1,104,560        
Reclassification of preferred stock warrant liability to additional paid-in capital due to conversion to Class B common stock upon IPO $ 16,469           16,469      
Exercise of stock options (in shares) 3,274,745         3,274,745        
Exercise of stock options $ 5,484           5,484      
Issuance of common stock (in shares)         16,850,799          
Issuance of common stock 231,553       $ 2   231,551      
Exercise of common stock warrants (in shares)           1,150,956        
Exercise of common stock warrants 395           395      
Vesting of common stock warrants 1,476           1,476      
Vesting of restricted stock units (in shares)         204          
Conversion of certain Class B shares into Class A common stock (in shares)         32,165,508 (32,165,508)        
Conversion of certain Class B shares into Class A common stock         $ 3 $ (3)        
Stock-based compensation 9,744           9,744      
Comprehensive income (loss) (1,290)             (1,290)    
Net loss (45,370)               (45,370)  
Stockholders' equity, ending balance (in shares) at Dec. 31, 2021         49,016,511 98,038,941        
Stockholders' equity, ending balance at Dec. 31, 2021 $ 397,004       $ 5 $ 10 $ 533,709 $ 666 $ (137,386)  
Increase (Decrease) in Temporary Equity [Roll Forward]                    
Conversion of convertible preferred stock to Class B common stock upon IPO (in shares) (70,990,919)                  
Conversion of convertible preferred stock to Class B common stock upon IPO $ (204,049)                  
Temporary equity, ending balance (in shares) at Dec. 31, 2021 0                  
Temporary equity, ending balance at Dec. 31, 2021 $ 0