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Condensed Consolidated Statements of 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
Balance at the beginning of the period (in shares) at Dec. 31, 2019 20,998,000        
Balance at the beginning of the period at Dec. 31, 2019 $ 173,068        
Redeemable Convertible Preferred Stock          
Issuance upon exercise of warrants (in shares) 651,000        
Issuance upon exercise of warrants $ 3,818        
Conversion of redeemable convertible preferred stock to common stock (in shares) (1,474,000)        
Conversion of redeemable convertible preferred stock to common stock $ (9,520)        
Issuance of redeemable convertible preferred stock, net of issuance costs (in shares) 5,227,000        
Issuance of redeemable convertible preferred stock, net of issuance costs $ 76,488        
Balance at the end f the period (in shares) at Dec. 31, 2020 25,402,402        
Balance at the end of the period at Dec. 31, 2020 $ 243,854        
Balance at the beginning of the period (in shares) at Dec. 31, 2019   2,290,000      
Balance at the beginning of the period at Dec. 31, 2019 (143,837) $ 0 $ 4,808 $ 4 $ (148,649)
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Conversion of redeemable convertible preferred stock to common stock upon initial public offering (in shares)   1,474,000      
Conversion of redeemable convertible preferred stock to common stock upon initial public offering 9,520   9,520    
Issuance upon exercise of warrants (in shares)   12,000      
Issuance upon exercise of warrants 11   11    
Issuance upon exercise of options (in shares)   937,000      
Issuance upon exercise of options 2,276   2,276    
Stock-based compensation expense 2,173   2,173    
Unrealized loss on cash equivalents (18)     (18)  
Net loss (53,019)       (53,019)
Balance at the end of the period (in shares) at Dec. 31, 2020   4,713,000      
Balance at the end of the period at Dec. 31, 2020 $ (182,894) $ 0 18,788 (14) (201,668)
Redeemable Convertible Preferred Stock          
Issuance upon exercise of warrants (in shares) 62,000        
Issuance upon exercise of warrants $ 970        
Conversion of redeemable convertible preferred stock to common stock (in shares) (29,912,000)        
Conversion of redeemable convertible preferred stock to common stock $ (329,534)        
Issuance of redeemable convertible preferred stock, net of issuance costs (in shares) 4,448,000        
Issuance of redeemable convertible preferred stock, net of issuance costs $ 84,710        
Balance at the end f the period (in shares) at Dec. 31, 2021 0        
Balance at the end of the period at Dec. 31, 2021 $ 0        
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Conversion of redeemable convertible preferred stock to common stock upon initial public offering (in shares)   29,912,000      
Conversion of redeemable convertible preferred stock to common stock upon initial public offering 329,534   329,534    
Issuance of common stock upon Initial public offering, net of underwriting discounts, commissions and offering expenses of $16,121 (in shares)   7,539,000      
Issuance of common stock upon initial public offering, net of underwriting discounts, commissions and offering expenses of $16,121 172,364   172,364    
Issuance upon exercise of options (in shares)   1,512,000      
Issuance upon exercise of options 4,184   4,184    
Stock-based compensation expense 3,796   3,796    
Unrealized loss on cash equivalents (40)     (40)  
Net loss (59,853)       (59,853)
Balance at the end of the period (in shares) at Dec. 31, 2021   43,676,000      
Balance at the end of the period at Dec. 31, 2021 $ 267,091 $ 0 $ 528,666 $ (54) $ (261,521)