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Consolidated Statements of Redeemable Convertible Preferred Stock and Stockholders Equity (Deficit) - USD ($)
$ in Thousands
Total
IPO
Redeemable Convertible Preferred Stock
Redeemable Convertible Preferred Stock
IPO
Redeemable Convertible Preferred Stock
Series E Redeemable Convertible Preferred Stock
Redeemable Convertible Preferred Stock
Series F Redeemable Convertible Preferred Stock
Common Stock
Common Stock
IPO
Additional Paid-in Capital
Additional Paid-in Capital
IPO
Retained Earnings
Beginning Balance, Amount at Dec. 31, 2019 $ (54,683)           $ 9   $ 656   $ (55,348)
Beginning Balance, shares at Dec. 31, 2019     9,804,640                
Balance at December 31, 2020 at Dec. 31, 2019     $ 64,256                
Balance at December 31, 2020 at Dec. 31, 2019             9,319,466        
Issuance of redeemable convertible preferred stock, net of issuance costs, Shares         1,899,847 1,062,715          
Issuance of redeemable convertible preferred stock, net of issuance costs         $ 30,044 $ 23,031          
Exercise of common stock warrants, Amount 6               6    
Exercise of common stock warrants, Shares             129,310        
Exercise of stock options, Amount 24               24    
Exercise of stock options, Shares             60,406        
Stock-based compensation expense 497               497    
Net loss and comprehensive loss (34,693)                   (34,693)
Ending Balance, Amount at Dec. 31, 2020 $ (88,849)           $ 9   1,183   (90,041)
Ending Balance, shares at Dec. 31, 2020     12,767,202                
Balance at September 30, 2021 at Dec. 31, 2020     $ 117,331                
Balance at September 30, 2021 at Dec. 31, 2020             9,509,182        
Conversion of redeemable convertible preferred stock to common stock upon initial public offering, Shares 25,534,404     (12,767,202)       25,534,404      
Conversion of redeemable convertible preferred stock to common stock upon initial public offering   $ 117,331   $ 117,331       $ 26   $ 117,305  
Issuance of common stock in connection with initial public offering, net of underwriting discounts and commissions and other offering costs of $23.8 million, Amount $ 252,174           $ 12   252,162    
Issuance of common stock in connection with initial public offering, net of underwriting discounts and commissions and other offering costs of $23.8 million, Shares             11,500,000        
Conversion of redeemable convertible preferred stock warrants to common stock warrants upon initial public offering, Amount 8,973               8,973    
Exercise of common stock warrants, Amount 0           $ 1   (1)    
Exercise of common stock warrants, Shares             483,554        
Exercise of stock options, Amount $ 355               355    
Exercise of stock options, Shares 477,564           477,564        
Stock-based compensation expense $ 5,083               5,083    
Net loss and comprehensive loss (62,960)                   (62,960)
Ending Balance, Amount at Dec. 31, 2021 $ 232,107           $ 48   $ 385,060   $ (153,001)
Ending Balance, shares at Dec. 31, 2021     0                
Balance at September 30, 2021 at Dec. 31, 2021     $ 0                
Balance at September 30, 2021 at Dec. 31, 2021             47,504,704