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UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY (DEFICIT) - USD ($)
$ in Thousands
Total
Common Stock
Additional Paid-In Capital
Accumulated Other Comprehensive Income
Accumulated Deficit
Beginning balance (in shares) at Dec. 31, 2023   194,582,539      
Beginning balance at Dec. 31, 2023 $ (30,584) $ 2 $ 1,578,358 $ 6 $ (1,608,950)
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Issuance of common stock, net of issuance costs (in shares)   13,261,311      
Issuance of common stock, net of    issuance costs 18,740   18,740    
Proceeds from sale of stock under employee stock purchase plan (in shares)   92,321      
Proceeds from sale of stock under    employee stock purchase plan 70   70    
Exercise of options (in shares)   280,260      
Exercise of options 141   141    
Stock-based compensation expense 2,360   2,360    
Restricted stock unit vesting (in shares)   1,237,718      
Net income (loss) (17,985)       (17,985)
Ending balance (in shares) at Mar. 31, 2024   209,454,149      
Ending balance at Mar. 31, 2024 $ (27,258) $ 2 1,599,669 6 (1,626,935)
Beginning balance (in shares) at Dec. 31, 2024 224,848,992 224,848,992      
Beginning balance at Dec. 31, 2024 $ (49,185) $ 2 1,629,167 6 (1,678,360)
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Issuance of common stock, net of issuance costs (in shares)   34,437,364      
Issuance of common stock, net of    issuance costs 64,907   64,907    
Proceeds from sale of stock under employee stock purchase plan (in shares)   93,362      
Proceeds from sale of stock under    employee stock purchase plan $ 78   78    
Exercise of options (in shares) 604,325 604,325      
Exercise of options $ 482   482    
Stock-based compensation expense 2,187   2,187    
Restricted stock unit vesting (in shares)   1,660,547      
Net income (loss) $ 6,112       6,112
Ending balance (in shares) at Mar. 31, 2025 261,644,590 261,644,590      
Ending balance at Mar. 31, 2025 $ 24,581 $ 2 $ 1,696,821 $ 6 $ (1,672,248)