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CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($)
$ in Thousands
Common Stock
At-the-market offering
Common Stock
Additional Paid-In Capital
At-the-market offering
Additional Paid-In Capital
Accumulated Other Comprehensive Income (Loss)
Accumulated Deficit
At-the-market offering
Total
Beginning balance at Dec. 31, 2020   $ 44   $ 625,762 $ 49 $ (459,327)   $ 166,528
Beginning balance (in shares) at Dec. 31, 2020   44,235,903            
Increase (Decrease) in Stockholders' Equity                
Stock compensation expense       20,804       20,804
Issuance of common stock in connection with ESPP       621       621
Issuance of common stock in connection with ESPP (in shares)   38,051            
Issuance of common stock in connection with exercise of stock options and vesting of restricted stock units       4,134       4,134
Issuance of common stock in connection with exercise of stock options and vesting of restricted stock units (in shares)   259,620            
Issuance of common stock, net of offering costs   $ 6   161,720       161,726
Issuance of common stock, net of offering costs (in shares)   5,750,000            
Net unrealized loss on marketable securities         (50)     (50)
Net Income (Loss)           (69,612)   (69,612)
Ending balance at Dec. 31, 2021   $ 50   813,041 (1) (528,939)   284,151
Ending balance (in shares) at Dec. 31, 2021   50,283,574            
Increase (Decrease) in Stockholders' Equity                
Stock compensation expense       19,831       19,831
Issuance of common stock in connection with ESPP       626       626
Issuance of common stock in connection with ESPP (in shares)   92,932            
Issuance of common stock in connection with exercise of stock options and vesting of restricted stock units   $ 1   9,751       9,752
Issuance of common stock in connection with exercise of stock options and vesting of restricted stock units (in shares)   855,923            
Issuance of common stock, net of offering costs   $ 5   131,107       131,112
Issuance of common stock, net of offering costs (in shares)   5,380,000            
Net unrealized loss on marketable securities         (91)     (91)
Net Income (Loss)           (181,119)   (181,119)
Ending balance at Dec. 31, 2022   $ 56   974,356 (92) (710,058)   264,262
Ending balance (in shares) at Dec. 31, 2022   56,612,429            
Increase (Decrease) in Stockholders' Equity                
Stock compensation expense       32,553       32,553
Issuance of common stock in connection with ESPP       1,053       1,053
Issuance of common stock in connection with ESPP (in shares)   49,819            
Issuance of common stock in connection with exercise of stock options and vesting of restricted stock units   $ 1   7,467       7,468
Issuance of common stock in connection with exercise of stock options and vesting of restricted stock units (in shares)   745,066            
Foreign currency translation adjustment         (140)     $ (140)
Issuance of common stock in connection with exercise of stock options (in shares)               529,854
Net unrealized gain on marketable securities         366     $ 366
Issuance of common stock, net of offering costs $ 2   $ 48,873       $ 48,875  
Issuance of common stock, net of offering costs (in shares) 2,019,245              
Net Income (Loss)           (184,678)   (184,678)
Ending balance at Dec. 31, 2023   $ 59   $ 1,064,302 $ 134 $ (894,736)   $ 169,759
Ending balance (in shares) at Dec. 31, 2023   59,426,559