Quarterly report pursuant to Section 13 or 15(d)

Condensed Consolidated Statements Of Changes in Stockholders' Equity (Deficit)

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Condensed Consolidated Statements Of Changes in Stockholders' Equity (Deficit) - USD ($)
$ in Thousands
Total
Common Stock [Member]
Additional Paid-in Capital
Accumulated Deficit
Balance at beginning of period (in shares) at Dec. 31, 2022   119,508,000    
Balance at beginning of period at Dec. 31, 2022 $ 121,874 $ 12 $ 666,973 $ (545,111)
Increase (Decrease) in Stockholders' Equity [Roll Forward]        
Issuance of common stock upon vesting of restricted stock awards (in shares) 3,214   3,214  
Issuance of common stock upon exercise of stock options (in shares)   129,000    
Issuance of common stock upon exercise of stock options 3   3  
Issuance of common stock upon vesting of restricted stock awards (in shares)   11,000    
Issuance of common stock upon vesting of restricted stock units (in shares)   787,000    
Issuance of common stock (in shares)   16,404,000    
Issuance of common stock 11,129 $ 2 11,127  
Net loss (17,315)     (17,315)
Balance at end of period (in shares) at Mar. 31, 2023   136,839,000    
Balance at end of period at Mar. 31, 2023 $ 118,905 $ 14 681,317 (562,426)
Balance at beginning of period (in shares) at Dec. 31, 2023 142,837,000 142,837,000    
Balance at beginning of period at Dec. 31, 2023 $ 93,159 $ 14 692,115 (598,970)
Increase (Decrease) in Stockholders' Equity [Roll Forward]        
Issuance of common stock upon vesting of restricted stock awards (in shares) 3,488   3,488  
Issuance of common stock upon exercise of stock options (in shares)   70,000    
Issuance of common stock upon exercise of stock options 1   1  
Issuance of common stock upon vesting of restricted stock awards (in shares)   8,000    
Issuance of common stock upon vesting of restricted stock units (in shares)   854,000    
Issuance of common stock (in shares)   953,000    
Issuance of common stock 1,294   1,294  
Withholding of restricted stock to satisfy tax withholding obligations upon the vesting of the related restricted stock (in shares)   288,000    
Withholding of restricted stock to satisfy tax withholding obligations upon the vesting of the related restricted stock (419)   (419)  
Net loss $ (15,810)     (15,810)
Balance at end of period (in shares) at Mar. 31, 2024 144,434,000 144,434,000    
Balance at end of period at Mar. 31, 2024 $ 81,713 $ 14 $ 696,479 $ (614,780)