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Warrants - Narrative (Details) $ / shares in Units, $ in Thousands |  |  | 3 Months Ended | 9 Months Ended |  |  |  |  |  |
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Jul. 01, 2024 shares | Jun. 26, 2024 USD ($) shares | Sep. 30, 2025 USD ($) $ / shares shares | Sep. 30, 2024 USD ($) shares | Jun. 30, 2024 USD ($) | Sep. 30, 2025 USD ($) day $ / shares shares | Sep. 30, 2024 USD ($) shares | Feb. 18, 2025 USD ($) shares | Dec. 31, 2024 USD ($) shares | May 24, 2024 shares | Apr. 30, 2024 USD ($) $ / shares shares | Dec. 31, 2023 shares | Aug. 10, 2023 USD ($) $ / shares shares
Class of Warrant or Right [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Warrants outstanding (in shares) |  |  | 7,402,541 |  |  | 7,402,541 |  |  | 7,311,278 |  |  |  |
Class of warrant or right, threshold number of days for warrants to be transferable |  |  |  |  |  | 30 days |  |  |  |  |  |  |
Warrant and SEPA liabilities | $ |  |  | $ 12,784 |  |  | $ 12,784 |  |  | $ 8,316 |  |  |  | $ 28,900
Loss on change in fair value of warrants and other liabilities | $ |  |  | $ 2,932 | $ (4,974) |  | $ 4,097 | $ 1,521 |  |  |  |  |  |
Issuance costs | $ |  | $ 1,700 |  |  | $ 1,699 |  |  |  |  |  |  |  |
Common stock |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock exchange for warrants (in shares) | 2,110,366 |  |  |  |  |  |  |  |  |  |  |  |
Public Warrants |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Warrants outstanding (in shares) |  |  | 1,751,825 | 1,751,825 |  | 1,751,825 | 1,751,825 |  | 1,751,825 |  |  | 8,281,779 | 8,333,272
Class of warrant or right, number of securities called by each warrant or right (in shares) |  |  |  |  |  |  |  |  |  | 0.27 |  |  | 1
Exercise price of warrants (in dollars per share) | $ / shares |  |  |  |  |  |  |  |  |  |  |  |  | $ 11.50
Warrants, term |  |  | 5 years |  |  | 5 years |  |  |  |  |  |  |
Class of warrant or right, redemption price (in dollars per share) | $ / shares |  |  |  |  |  | $ 0.01 |  |  |  |  |  |  |
Warrant redemption condition, share price (in dollars per share) | $ / shares |  |  |  |  |  | $ 18.00 |  |  |  |  |  |  |
Class of warrant or right, conversion terms, threshold trading days | day |  |  |  |  |  | 20 |  |  |  |  |  |  |
Class of warrant or right, conversion terms, threshold consecutive trading days | day |  |  |  |  |  | 30 |  |  |  |  |  |  |
Warrant and SEPA liabilities | $ |  |  | $ 3,000 |  |  | $ 3,000 |  |  | $ 1,900 |  |  |  |
Number of warrants exchanged (in shares) |  |  |  |  |  |  |  |  |  | 6,529,954 |  |  |
Warrant holder support for Warrant Agreement |  | 0.788 |  |  |  |  |  |  |  |  |  |  |
Public Warrants | Minimum |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Threshold number of business days before sending notice of redemption to warrant holders | day |  |  |  |  |  | 30 |  |  |  |  |  |  |
Private Placement Warrants |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Warrants outstanding (in shares) |  |  | 4,428,648 | 4,428,648 |  | 4,428,648 | 4,428,648 |  | 4,428,648 |  |  | 4,933,333 |
Warrant and SEPA liabilities | $ |  |  | $ 7,500 |  |  | $ 7,500 |  |  | $ 4,900 |  |  |  |
Number of warrants exchanged (in shares) |  |  |  |  |  |  |  |  |  | 504,685 |  |  |
Warrant holder support for Warrant Agreement |  | 0.102 |  |  |  |  |  |  |  |  |  |  |
Working Capital Warrants |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Warrants outstanding (in shares) |  |  | 1,000,000 | 1,000,000 |  | 1,000,000 | 1,000,000 |  | 1,000,000 |  |  | 1,000,000 |
Warrant and SEPA liabilities | $ |  |  | $ 1,700 |  |  | $ 1,700 |  |  | $ 1,100 |  |  |  |
Number of warrants exchanged (in shares) |  | 0 |  |  |  |  |  |  |  |  |  |  |
Public Warrants, Private Placement Warrants And Working Capital Warrants |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Loss on change in fair value of warrants and other liabilities | $ |  |  | $ 2,900 |  |  | $ 4,300 |  |  |  |  |  |  |
Outstanding warrant liabilities | $ |  | $ 11,900 |  |  |  |  |  |  |  |  |  |  |
Warrants and rights outstanding, net of issuance costs | $ |  | $ 10,200 |  |  |  |  |  |  |  |  |  |  |
Initial OrbiMed Warrant |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Exercise price of warrants (in dollars per share) | $ / shares |  |  | $ 8.8398 |  |  | $ 8.8398 |  |  |  |  | $ 9.5562 |  |
Outstanding warrant liabilities | $ |  |  | $ 1,200 |  |  | $ 1,200 |  |  |  |  | $ 1,300 |  |
Warrants to purchase common stock (in shares) |  |  |  |  |  |  |  |  |  |  | 130,805 |  |
OrbiMed Warrants liability |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Warrants outstanding (in shares) |  |  | 222,068 |  |  | 222,068 |  |  | 130,805 |  |  |  |
Warrants, term |  |  |  |  |  |  |  |  |  |  | 7 years |  |
Warrants issued, delayed draw commitment amount, percentage |  |  |  |  |  |  |  |  |  |  | 0.050 |  |
Purchase agreement, ownership limitation |  |  |  |  |  |  |  |  |  |  | 0.0999 |  |
Subsequent OrbiMed Warrants, Entity One |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Warrants to purchase common stock (in shares) |  |  |  |  |  |  |  | 64,748 |  |  |  |  |
Subsequent OrbiMed Warrants, Entity Two |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Warrants to purchase common stock (in shares) |  |  |  |  |  |  |  | 26,515 |  |  |  |  |
Subsequent OrbiMed Warrants |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Exercise price of warrants (in dollars per share) | $ / shares |  |  | $ 5.3322 |  |  | $ 5.3322 |  |  |  |  |  |  |
Outstanding warrant liabilities | $ |  |  | $ 500 |  |  | $ 500 |  | $ 500 |  |  |  |  |

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