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Consolidated Statements of Stockholders' Equity (Deficit) - USD ($)
$ in Thousands
Total
Public Offerings
Common Stock
Common Stock
Public Offerings
Additional Paid-in Capital
Additional Paid-in Capital
Public Offerings
Accumulated Other Comprehensive Loss
Accumulated Other Comprehensive Loss
Public Offerings
Retained Earnings
Convertible Preferred Stock
Beginning balance at Dec. 31, 2018 $ (16,057)   $ 1   $ 118   $ 0   $ (16,176)  
Beginning balance, shares at Dec. 31, 2018                   24,000,000
Beginning balance at Dec. 31, 2018                   $ 23,073
Beginning balance, shares at Dec. 31, 2018     611,226              
Issuance of convertible preferred stock, net of issuance costs             0     $ 26,673
Issuance of convertible preferred stock, net of issuance costs, shares                   20,000,000
Conversion of convertible preferred stock into common stock upon completion of initial public offering 49,746   $ 7   49,739   0      
Temporary Equity, Conversion of convertible preferred stock into common stock upon completion of initial public offering, shares                   (44,000,000)
Temporary Equity, Conversion of convertible preferred stock into common stock upon completion of initial public offering                   $ (49,746)
Conversion of convertible preferred stock into common stock upon completion of initial public offering, shares     7,077,366              
Issuance of common stock   $ 87,691   $ 6   $ 87,685   $ 0    
Issuance of common stock, shares       6,100,390            
Capital contribution related to extinguishment of convertible preferred stock liability 25,595       25,595   0      
Share-based compensation 389       389   0      
Net loss (57,420)           0   (57,420)  
Ending balance at Dec. 31, 2019 $ 89,944   $ 14   163,526   0   (73,596)  
Ending balance, shares at Dec. 31, 2019 0                  
Ending balance, shares at Dec. 31, 2019     13,788,982              
Issuance of common stock   $ 157,680   $ 6   $ 157,674   $ 0    
Issuance of common stock, shares       6,072,040            
Issuance of common stock upon exercise of stock options $ 271       271   0      
Issuance of common stock upon exercise of stock options, shares     63,366              
Stock Issued During Period Value Employee Stock Purchase Plan 134       134   0      
Issuance of common stock upon ESPP purchase, Shares     7,272              
Issuance Of Common Stock Warrants In Connection With Debt Financing 634       634   0      
Share-based compensation 3,807       3,807   0      
Net loss (49,499)           0   (49,499)  
Other comprehensive loss (10)           (10)      
Ending balance at Dec. 31, 2020 $ 202,961   $ 20   $ 326,046   $ (10)   $ (123,095)  
Ending balance, shares at Dec. 31, 2020 0                  
Ending balance, shares at Dec. 31, 2020     19,931,660