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CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS 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      
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
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     29,100