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Consolidated Statements of Convertible Preferred Stock and Stockholders' Equity (Deficit) - USD ($)
$ in Thousands
Total
Cumulative Effect, Period of Adoption, Adjustment
Common Stock
Additional Paid-in Capital
Accumulated Deficit
Accumulated Deficit
Cumulative Effect, Period of Adoption, Adjustment
Accumulated Other Comprehensive Income (Loss)
Convertible Preferred Stock
Redeemable Convertible Preferred Stock
Beginning balance, shares at Dec. 31, 2018               21,683,024 3,233,851
Beginning balance at Dec. 31, 2018               $ 83,845 $ 35,000
Increase (Decrease) in Temporary Equity [Roll Forward]                  
Issuance of preferred stock (in shares)               524 2,310,067
Issuance of preferred stock               $ 12 $ 24,953
Change in Class B-1 preferred stock redemption value                 $ 10,047
Change in Class B-1 preferred stock redemption value $ (10,047)       $ (10,047)        
Conversion of convertible preferred stock and redeemable convertible preferred stock to common stock upon initial public offering 0                
Ending balance, shares at Dec. 31, 2019               21,683,548 5,543,918
Ending balance at Dec. 31, 2019               $ 83,857 $ 70,000
Beginning balance, shares at Dec. 31, 2018     8,681,557            
Beginning balance at Dec. 31, 2018 (157,960) $ 11,982 $ 1 $ 18,385 (176,424) $ 11,982 $ 78    
Increase (Decrease) in Stockholders' Equity [Roll Forward]                  
Issuance of common stock upon exercise of stock options (in shares)     272,410            
Issuance of common stock upon exercise of stock options, Amount 426   $ 0 426          
Stock-based compensation expense 1,998     1,998          
Other comprehensive loss (80)           (80)    
Net income (loss) (17,527)       (17,527)        
Ending balance, shares at Dec. 31, 2019     8,953,967            
Ending balance at Dec. 31, 2019 (171,208)   $ 1 20,809 (192,016)   (2)    
Increase (Decrease) in Temporary Equity [Roll Forward]                  
Conversion of convertible preferred stock and redeemable convertible preferred stock to common stock upon initial public offering 0                
Ending balance, shares at Dec. 31, 2020               21,683,548 5,543,918
Ending balance at Dec. 31, 2020               $ 83,857 $ 70,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]                  
Issuance of common stock upon exercise of stock options (in shares)     1,942,170            
Issuance of common stock upon exercise of stock options, Amount 3,774   $ 0 3,774          
Stock-based compensation expense 2,929     2,929          
Other comprehensive loss 96           96    
Net income (loss) $ 20,753       20,753        
Ending balance, shares at Dec. 31, 2020 10,896,137   10,896,137            
Ending balance at Dec. 31, 2020 $ (143,656)   $ 1 27,512 (171,263)   94    
Increase (Decrease) in Temporary Equity [Roll Forward]                  
Conversion of convertible preferred stock and redeemable convertible preferred stock to common stock upon initial public offering (in shares)               (21,683,548) (5,543,918)
Conversion of convertible preferred stock and redeemable convertible preferred stock to common stock upon initial public offering (153,857)             $ (83,857) $ (70,000)
Ending balance, shares at Dec. 31, 2021               0 0
Ending balance at Dec. 31, 2021               $ 0 $ 0
Increase (Decrease) in Stockholders' Equity [Roll Forward]                  
Conversion of convertible preferred stock and redeemable convertible preferred stock to common stock upon initial public offering (in shares)     27,227,466            
Conversion of convertible preferred stock and redeemable convertible preferred stock to common stock upon initial public offering 153,857   $ 3 153,854          
Issuance of common stock upon initial public offering, net of underwriting discounts and other offering costs (in shares)     7,599,928            
Issuance of common stock upon initial public offering, net of underwriting discounts and other offering costs 347,781   $ 1 347,780          
Repurchase of common stock $ (7,228)   $ 0 (7,228)          
Repurchase of common stock (in shares) (428,218)   (428,218)            
Issuance of common stock upon exercise of stock options (in shares) 2,266,979   2,226,932            
Issuance of common stock upon exercise of stock options, Amount $ 5,825   $ 0 5,825          
Issuance of common stock upon release of restricted stock units (in shares)     130,074            
Issuance of common stock upon release of restricted stock units 0   $ 0 0          
Issuance of common stock under Employee Stock Purchase Plan (ESPP) (in shares)     75,027            
Issuance of common stock under Employee Stock Purchase Plan (ESPP) 1,054   $ 0 1,054          
Payment for employee tax withholding upon net share settlement on equity awards (3,608)     (3,608)          
Stock-based compensation expense 25,650     25,650          
Other comprehensive loss (329)           (329)    
Net income (loss) $ (24,256)       (24,256)        
Ending balance, shares at Dec. 31, 2021 47,727,346   47,727,346            
Ending balance at Dec. 31, 2021 $ 355,090   $ 5 $ 550,839 $ (195,519)   $ (235)