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Consolidated Statements of Stockholders' Equity - USD ($)
$ in Thousands
Total
Preferred Stock
Common stock
Additional paid-in Capital
Accumulated other comprehensive income (loss)
Accumulated deficit
Balance at Dec. 31, 2019 $ 416,565   $ 2 $ 639,567 $ 216 $ (223,220)
Balance (in shares) at Dec. 31, 2019   1,969,797 15,429,154      
Increase (Decrease) in Stockholders' Equity            
Issuance of common and preferred shares in equity offerings, excluding to related parties, net of transaction costs 4,421     4,421    
Issuance of common and preferred shares in equity offerings, excluding to related parties, net of transaction costs (in shares)     39,607      
Sale of common shares to related parties and exercise of common stock options, net of transaction cost 667     667    
Sale of common shares to related parties and exercise of common stock options, net of transaction cost ( in shares)     39,385      
Compensation expense related to stock options for services 20,730     20,730    
Unrealized loss on marketable securities (169)       (169)  
Net loss (202,244)         (202,244)
Balance at Dec. 31, 2020 239,970   $ 2 665,385 47 (425,464)
Balance (in shares) at Dec. 31, 2020   1,969,797 15,508,146      
Increase (Decrease) in Stockholders' Equity            
Issuance of common and preferred shares in equity offerings, excluding to related parties, net of transaction costs 170,207     170,207    
Issuance of common and preferred shares in equity offerings, excluding to related parties, net of transaction costs (in shares)     1,584,169      
Sale of common shares to related parties and exercise of common stock options, net of transaction cost 1,030     1,030    
Sale of common shares to related parties and exercise of common stock options, net of transaction cost ( in shares)     11,080      
Compensation expense related to stock options for services 26,873     26,873    
Unrealized loss on marketable securities (127)       (127)  
Net loss (241,846)         (241,846)
Balance at Dec. 31, 2021 $ 196,107   $ 2 863,495 (80) (667,310)
Balance (in shares) at Dec. 31, 2021 17,103,395 1,969,797 17,103,395      
Increase (Decrease) in Stockholders' Equity            
Issuance of common and preferred shares in equity offerings, excluding to related parties, net of transaction costs $ 255,382     255,382    
Issuance of common and preferred shares in equity offerings, excluding to related parties, net of transaction costs (in shares)   400,000 783,344      
Sale of common shares to related parties and exercise of common stock options, net of transaction cost 8,955     8,955    
Sale of common shares to related parties and exercise of common stock options, net of transaction cost ( in shares)     215,784      
Compensation expense related to stock options for services 31,625     31,625    
Unrealized loss on marketable securities 48       48  
Hercules warrant 622     622    
Net loss (295,350)         (295,350)
Balance at Dec. 31, 2022 $ 197,389   $ 2 $ 1,160,079 $ (32) $ (962,660)
Balance (in shares) at Dec. 31, 2022 18,102,523 2,369,797 18,102,523