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CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($)
$ in Thousands
Total
Common Stock
Additional Paid-In Capital
Accumulated Other Comprehensive Loss
Accumulated Deficit
Beginning balance (in shares) at Dec. 31, 2022   126,913,992      
Beginning balance at Dec. 31, 2022 $ 998,023 $ 127 $ 1,160,882 $ (3,899) $ (159,087)
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Issuance of common stock for ESPP (in shares)   96,733      
Issuance of common stock for ESPP 811   811    
Issuance of restricted stock, net of forfeitures (in shares)   114,738      
Issuance of restricted stock, net of forfeitures (147)   (147)    
Issuance of common stock for stock options (in shares)   75,028      
Issuance of common stock for stock options 751   751    
Stock issuance fees and expenses (4)   (4)    
Stock-based compensation expense 4,758   4,758    
Net unrealized gain on marketable securities, net of tax 1,065     1,065  
Net loss (30,795)       (30,795)
Ending balance (in shares) at Mar. 31, 2023   127,200,491      
Ending balance at Mar. 31, 2023 $ 974,462 $ 127 1,167,051 (2,834) (189,882)
Beginning balance (in shares) at Dec. 31, 2023 127,369,142 127,369,142      
Beginning balance at Dec. 31, 2023 $ 941,537 $ 127 1,190,139 (1,674) (247,055)
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Issuance of common stock for ESPP (in shares)   70,278      
Issuance of common stock for ESPP 917   917    
Issuance of restricted stock, net of forfeitures (in shares)   (17,398)      
Issuance of restricted stock, net of forfeitures $ (199)   (199)    
Issuance of common stock for stock options (in shares) 12,764 12,764      
Issuance of common stock for stock options $ 102   102    
Stock issuance fees and expenses (4)   (4)    
Stock-based compensation expense 7,774   7,774    
Net unrealized gain on marketable securities, net of tax 344     344  
Net loss $ (27,061)       (27,061)
Ending balance (in shares) at Mar. 31, 2024 127,434,786 127,434,786      
Ending balance at Mar. 31, 2024 $ 923,410 $ 127 $ 1,198,729 $ (1,330) $ (274,116)