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CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' (DEFICIT) EQUITY - USD ($)
shares in Thousands, $ in Thousands
Common stock
Additional Paid in Capital
Accumulated Deficit
Total
Beginning Balance at Dec. 31, 2021 $ 28 $ 467,427 $ (245,788) $ 221,667
Beginning Balance (in shares) at Dec. 31, 2021 27,980      
Stock-based compensation   3,825   3,825
Net loss     (31,472) (31,472)
Ending Balance at Mar. 31, 2022 $ 28 471,252 (277,260) 194,020
Ending Balance (in shares) at Mar. 31, 2022 27,980      
Beginning Balance at Dec. 31, 2021 $ 28 467,427 (245,788) 221,667
Beginning Balance (in shares) at Dec. 31, 2021 27,980      
Issuance of stock purchase warrants       3,245
Net loss       (110,949)
Ending Balance at Sep. 30, 2022 $ 28 483,695 (356,737) 126,986
Ending Balance (in shares) at Sep. 30, 2022 28,023      
Beginning Balance at Dec. 31, 2021 $ 28 467,427 (245,788) 221,667
Beginning Balance (in shares) at Dec. 31, 2021 27,980      
Ending Balance at Dec. 31, 2022 $ 28 488,292 (411,545) $ 76,775
Ending Balance (in shares) at Dec. 31, 2022 28,147     28,147
Beginning Balance at Mar. 31, 2022 $ 28 471,252 (277,260) $ 194,020
Beginning Balance (in shares) at Mar. 31, 2022 27,980      
Stock-based compensation   4,482   4,482
Issuance of stock purchase warrants   3,245   3,245
Exercise of stock options   185   185
Exercise of stock options (in shares) 38      
Net loss     (37,672) (37,672)
Ending Balance at Jun. 30, 2022 $ 28 479,164 (314,932) 164,260
Ending Balance (in shares) at Jun. 30, 2022 28,018      
Stock-based compensation   4,483   4,483
Exercise of stock options   48   48
Exercise of stock options (in shares) 5      
Net loss     (41,805) (41,805)
Ending Balance at Sep. 30, 2022 $ 28 483,695 (356,737) 126,986
Ending Balance (in shares) at Sep. 30, 2022 28,023      
Beginning Balance at Dec. 31, 2022 $ 28 488,292 (411,545) $ 76,775
Beginning Balance (in shares) at Dec. 31, 2022 28,147     28,147
Issuance of common shares, net of offering costs $ 1 23,917   $ 23,918
Issuance of common shares, net of offering costs (in shares) 756      
Stock-based compensation   4,877   4,877
Exercise of stock options   258   258
Exercise of stock options (in shares) 173      
Vesting of restricted stock units, net of employee tax obligations   (27)   (27)
Vesting of restricted stock units, net of employee tax obligations (in shares) 24      
Net loss     (52,796) (52,796)
Ending Balance at Mar. 31, 2023 $ 29 517,317 (464,341) 53,005
Ending Balance (in shares) at Mar. 31, 2023 29,100      
Beginning Balance at Dec. 31, 2022 $ 28 488,292 (411,545) $ 76,775
Beginning Balance (in shares) at Dec. 31, 2022 28,147     28,147
Net loss       $ (156,797)
Ending Balance at Sep. 30, 2023 $ 29 527,705 (568,342) $ (40,608)
Ending Balance (in shares) at Sep. 30, 2023 29,273     29,273
Beginning Balance at Mar. 31, 2023 $ 29 517,317 (464,341) $ 53,005
Beginning Balance (in shares) at Mar. 31, 2023 29,100      
Stock-based compensation   6,124   6,124
Exercise of stock options   250   250
Exercise of stock options (in shares) 136      
Vesting of restricted stock units, net of employee tax obligations (in shares) 31      
Net loss     (53,515) (53,515)
Ending Balance at Jun. 30, 2023 $ 29 523,691 (517,856) 5,864
Ending Balance (in shares) at Jun. 30, 2023 29,267      
Stock-based compensation   4,014   4,014
Vesting of restricted stock units, net of employee tax obligations (in shares) 6      
Net loss     (50,486) (50,486)
Ending Balance at Sep. 30, 2023 $ 29 $ 527,705 $ (568,342) $ (40,608)
Ending Balance (in shares) at Sep. 30, 2023 29,273     29,273