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Condensed Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($)
$ in Thousands
Total
Common Stock
Additional Paid-in Capital
Accumulated Other Comprehensive Income (Loss)
Accumulated Deficit
Beginning balance (in shares) at Dec. 31, 2022   65,811,000      
Beginning balance at Dec. 31, 2022 $ 144,797 $ 6 $ 566,081 $ 0 $ (421,290)
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Issuance of common stock upon exercise of stock options (in shares) 214,284 214,000      
Issuance of common stock upon exercise of stock options $ 422   422    
Issuance of common stock upon release of stock awards (in shares)   787,000      
Issuance of common stock in connection with an equity sales agreement, net of issuance costs (shares)   3,080,000      
Issuance of common stock in connection with an equity sales agreement, net of issuance costs 7,931   7,931    
Stock-based compensation 7,808   7,808    
Taxes paid related to net share settlement of equity awards (in shares)   (65,000)      
Taxes paid related to net share settlement of equity awards (404)   (404)    
Net loss (69,048)       (69,048)
Ending balance (in shares) at Sep. 30, 2023   69,827,000      
Ending balance at Sep. 30, 2023 91,506 $ 6 581,838 0 (490,338)
Beginning balance (in shares) at Jun. 30, 2023   69,804,000      
Beginning balance at Jun. 30, 2023 124,131 $ 6 579,555 0 (455,430)
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Issuance of common stock upon release of stock awards (in shares)   23,000      
Stock-based compensation 2,283   2,283    
Net loss (34,908)       (34,908)
Ending balance (in shares) at Sep. 30, 2023   69,827,000      
Ending balance at Sep. 30, 2023 91,506 $ 6 581,838 0 (490,338)
Beginning balance (in shares) at Dec. 31, 2023   69,905,000      
Beginning balance at Dec. 31, 2023 $ 86,615 $ 7 584,138 0 (497,530)
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Issuance of common stock upon exercise of stock options (in shares) 72,856 73,000      
Issuance of common stock upon exercise of stock options $ 143   143    
Issuance of common stock upon release of stock awards (in shares)   834,000      
Issuance of common stock warrants in connection with debt issuance 859   859    
Issuance of common stock under employee stock purchase plan (in shares)   124,000      
Issuance of common stock under employee stock purchase plan 260   260    
Issuance of common stock in connection with an equity sales agreement, net of issuance costs (shares)   10,440,000      
Issuance of common stock in connection with an equity sales agreement, net of issuance costs 29,736 $ 1 29,735    
Stock-based compensation 10,561   10,561    
Net loss (54,900)       (54,900)
Other comprehensive gain 126     126  
Ending balance (in shares) at Sep. 30, 2024   81,376,000      
Ending balance at Sep. 30, 2024 73,400 $ 8 625,696 126 (552,430)
Beginning balance (in shares) at Jun. 30, 2024   70,914,000      
Beginning balance at Jun. 30, 2024 61,447 $ 7 593,253 (23) (531,790)
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Issuance of common stock upon release of stock awards (in shares)   22,000      
Issuance of common stock in connection with an equity sales agreement, net of issuance costs (shares)   10,440,000      
Issuance of common stock in connection with an equity sales agreement, net of issuance costs 29,736 $ 1 29,735    
Stock-based compensation 2,708   2,708    
Net loss (20,640)       (20,640)
Other comprehensive gain 149     149  
Ending balance (in shares) at Sep. 30, 2024   81,376,000      
Ending balance at Sep. 30, 2024 $ 73,400 $ 8 $ 625,696 $ 126 $ (552,430)