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CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (DEFICIT) - 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 |  | 184,135,714 |  |  |
Beginning balance at Dec. 31, 2022 | $ 5,230 | $ 2 | $ 1,562,247 | $ 6 | $ (1,557,025)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |
Issuance of common stock, net of issuance costs (in shares) |  | 6,189,974 |  |  |
Issuance of common stock, net of issuance costs | 6,708 |  | 6,708 |  |
Proceeds from sale of stock under employee stock purchase plan (in shares) |  | 200,194 |  |  |
Proceeds from sale of stock under employee stock purchase plan | 85 |  | 85 |  |
Stock-based compensation expense | 9,317 |  | 9,317 |  |
Restricted stock unit vesting (in shares) |  | 4,054,407 |  |  |
Exercise of options (in shares) |  | 2,250 |  |  |
Exercise of options | 1 |  | 1 |  |
Net loss | (51,925) |  |  |  | (51,925)
Ending balance (in shares) at Dec. 31, 2023 |  | 194,582,539 |  |  |
Ending 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) |  | 27,532,942 |  |  |
Issuance of common stock, net of issuance costs | 42,495 |  | 42,495 |  |
Proceeds from sale of stock under employee stock purchase plan (in shares) |  | 189,732 |  |  |
Proceeds from sale of stock under employee stock purchase plan | 153 |  | 153 |  |
Stock-based compensation expense | 7,775 |  | 7,775 |  |
Restricted stock unit vesting (in shares) |  | 2,099,540 |  |  |
Exercise of options (in shares) |  | 444,239 |  |  |
Exercise of options | 386 |  | 386 |  |
Net loss | $ (69,410) |  |  |  | (69,410)
Ending balance (in shares) at Dec. 31, 2024 | 224,848,992 | 224,848,992 |  |  |
Ending 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) |  | 35,287,364 |  |  |
Issuance of common stock, net of issuance costs | 66,449 |  | 66,449 |  |
Warrants exercised, cashless (in shares) |  | 1,408,588 |  |  |
Warrants exercised, cashless | 7,494 |  | 7,494 |  |
Proceeds from sale of stock under employee stock purchase plan (in shares) |  | 187,422 |  |  |
Proceeds from sale of stock under employee stock purchase plan | 230 |  | 230 |  |
Stock-based compensation expense | $ 11,283 |  | 11,283 |  |
Restricted stock unit vesting (in shares) |  | 2,486,599 |  |  |
Exercise of options (in shares) | 1,205,853 | 1,205,853 |  |  |
Exercise of options | $ 1,684 |  | 1,684 |  |
Net loss | $ (5,345) |  |  |  | (5,345)
Ending balance (in shares) at Dec. 31, 2025 | 265,424,818 | 265,424,818 |  |  |
Ending balance at Dec. 31, 2025 | $ 32,610 | $ 2 | $ 1,716,307 | $ 6 | $ (1,683,705)

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