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Consolidated Statements of Convertible Preferred Shares and Shareholders' Equity (Deficit) - USD ($)
$ in Thousands
Total
Initial Public Offering
Series A Convertible Preferred Shares
Series B Convertible Preferred Shares
Common Shares
Common Shares
Initial Public Offering
Additional Paid-in Capital
Accumulated Deficit
Balance at Dec. 31, 2018 $ (22,384)       $ 1   $ 340 $ (22,725)
Temporary equity balance, Shares at Dec. 31, 2018     6,813,340          
Temporary equity balance, Value at Dec. 31, 2018     $ 31,873          
Balance, Shares at Dec. 31, 2018         1,528,374      
Issuance of convertible preferred shares, net of issuance costs     $ 21,876 $ 82,248        
Issuance of convertible preferred shares, net of issuance costs, Shares     4,276,795 10,468,258        
Series A Tranche 3 termination 2,960           2,960  
Share-based compensation expense 511           511  
Net loss and comprehensive loss (27,216)             (27,216)
Balance at Dec. 31, 2019 $ (46,129)       $ 1   3,811 (49,941)
Temporary equity balance, Shares at Dec. 31, 2019 21,558,393   11,090,135 10,468,258        
Temporary equity balance, Value at Dec. 31, 2019 $ 135,997   $ 53,749 $ 82,248        
Balance, Shares at Dec. 31, 2019         1,528,374      
Exercise of vested stock options $ 799       $ 1,272   (473)  
Exercise of common stock options, Shares 416,157       416,157      
Share-based compensation expense $ 2,537           2,537  
Issuance of common shares upon initial public offering, net of issuance costs   $ 232,043       $ 232,043    
Issuance of common shares upon initial public offering, net of issuance costs , Shares           12,650,000    
Conversion of convertible preferred shares into an equivalent number of common shares, Value 135,997   $ (53,749) $ (82,248) $ 135,997      
Conversion of convertible preferred shares into an equivalent number of common shares, Shares     (11,090,135) (10,468,258) 21,558,393      
Issuance of warrant and conversion into common shares,Value 15,000       $ 15,000      
Issuance of warrant and conversion into common shares, Shares         750,000      
Net loss and comprehensive loss (53,417)             (53,417)
Balance at Dec. 31, 2020 $ 286,830       $ 384,313   $ 5,875 $ (103,358)
Temporary equity balance, Shares at Dec. 31, 2020     0 0        
Balance, Shares at Dec. 31, 2020         36,902,924