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STATEMENT OF CHANGES IN REDEEMABLE CONVERTIBLE PREFERRED STOCK AND STOCKHOLDERS’ EQUITY (DEFICIT) - USD ($)
$ in Thousands
Total
Common Stock
Additional Paid-In Capital
Accumulated Other Comprehensive Income (Loss)
Accumulated Deficit
Series A Redeemable Convertible Preferred Stock
Series A Redeemable Convertible Preferred Stock
Common Stock
Series A Redeemable Convertible Preferred Stock
Additional Paid-In Capital
Series B Redeemable Convertible Preferred Stock
Series B Redeemable Convertible Preferred Stock
Common Stock
Series B Redeemable Convertible Preferred Stock
Additional Paid-In Capital
Series B-1 Redeemable Convertible Preferred Stock
Series B-1 Redeemable Convertible Preferred Stock
Common Stock
Series B-1 Redeemable Convertible Preferred Stock
Additional Paid-In Capital
Preferred stock, beginning balance (in shares) at Dec. 31, 2019           1,093,019     0     0    
Preferred stock, beginning balance at Dec. 31, 2019           $ 49,064     $ 0     $ 0    
Increase (Decrease) in Temporary Equity [Roll Forward]                            
Sale of redeemable convertible preferred stock, net of issuance costs (in shares)                 550,571,000     1,319,964    
Sale of redeemable convertible preferred stock, net of issuance costs                 $ 34,427     $ 82,613    
Conversion of redeemable convertible preferred stock (in shares)           (1,093,019)     (550,571,000)     (1,319,964)    
Conversion of redeemable convertible preferred stock           $ (49,064)     $ (34,427)     $ (82,613)    
Preferred stock, ending balance (in shares) at Dec. 31, 2020           0     0     0    
Preferred stock, ending balance at Dec. 31, 2020           $ 0     $ 0     $ 0    
Beginning balance (in shares) at Dec. 31, 2019   7,600,877                        
Beginning balance at Dec. 31, 2019 $ (34,548) $ 1 $ 887 $ 54 $ (35,490)                  
Increase (Decrease) in Stockholders' Equity [Roll Forward]                            
Conversion of redeemable convertible preferred stock (in shares)             7,487,151     3,771,363     9,041,739  
Conversion of redeemable convertible preferred stock           $ 49,064 $ 1 $ 49,063 $ 34,427 $ 1 $ 34,426 $ 82,613 $ 1 $ 82,612
Issuance of common stock upon initial public offering, net of issuance cost (in shares)   13,664,704                        
Issuance of common stock upon initial public offering, net of issuance cost 213,530 $ 1 213,529                      
Exercise of stock options (in shares)   181,449                        
Exercise of stock options 229 $ 0 229                      
Vesting of common stock previously subject to vesting (in shares)   20,148                        
Stock-based compensation expense 1,266   1,266                      
Unrealized loss on investments (117)     (117)                    
Net loss (36,603)       (36,603)                  
Ending balance (in shares) at Dec. 31, 2020   41,767,431                        
Ending balance at Dec. 31, 2020 $ 309,861 $ 5 382,012 (63) (72,093)                  
Preferred stock, ending balance (in shares) at Dec. 31, 2021           0     0     0    
Preferred stock, ending balance at Dec. 31, 2021           $ 0     $ 0     $ 0    
Increase (Decrease) in Stockholders' Equity [Roll Forward]                            
Exercise of stock options (in shares) 557,609                          
Vesting of common stock previously subject to vesting (in shares)   11,752                        
Stock-based compensation expense $ 5,467   5,467                      
Unrealized loss on investments (497)     (497)                    
Net loss (44,974)       (44,974)                  
Exercise of stock options and ESPP purchases (in shares)   559,715                        
Exercise of stock options and ESPP purchases 1,929   1,929                      
Ending balance (in shares) at Dec. 31, 2021   42,338,898                        
Ending balance at Dec. 31, 2021 $ 271,786 $ 5 $ 389,408 $ (560) $ (117,067)