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CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($)
$ in Thousands
Common Stock
Additional Paid-in Capital
Accumulated Other Comprehensive Income (Loss)
Accumulated Deficit
Total
Balance at beginning at Dec. 31, 2019 $ 30 $ 270,682 $ 37 $ (157,848) $ 112,901
Balance at beginning (in shares) at Dec. 31, 2019 29,792,922        
Increase (decrease) in Stockholders' Equity          
Unrealized loss on marketable securities     (39)   (39)
Sale of common shares, net of issuance costs $ 4 215,918     215,922
Sale of common shares, net of issuance costs (in shares) 3,717,948        
Exercise of warrants (in shares) 6,961        
Restricted shares forfeited during the period (in shares) (42,010)        
Exercise of stock options   7,294     7,294
Exercise of stock options (in shares) 676,649        
Equity-based compensation expense   11,175     11,175
Net Loss       (86,483) (86,483)
Balance at end at Dec. 31, 2020 $ 34 505,069 (2) (244,331) 260,770
Balance at end (in shares) at Dec. 31, 2020 34,152,470        
Increase (decrease) in Stockholders' Equity          
Unrealized loss on marketable securities     (33)   (33)
Sale of common shares, net of issuance costs   13,095     13,095
Sale of common shares, net of issuance costs (in shares) 500,000        
Exercise of stock options $ 1 6,891     6,892
Exercise of stock options (in shares) 556,629        
Equity-based compensation expense   23,149     23,149
Net Loss       (131,799) (131,799)
Balance at end at Dec. 31, 2021 $ 35 $ 548,204 $ (35) $ (376,130) $ 172,074
Balance at end (in shares) at Dec. 31, 2021 35,209,099