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Convertible Preferred Stock - Series B Preferred Stock (Narrative) (Details) - USD ($) $ in Thousands |  |  |  |  |  |  | 1 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Oct. 11, 2024 | Sep. 25, 2024 | Jul. 02, 2024 | Apr. 08, 2024 | Mar. 26, 2024 | Nov. 13, 2023 | Jul. 31, 2024 | Dec. 31, 2024 | Dec. 31, 2023
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |
Preferred stock, shares authorized (in shares) |  |  |  |  |  |  |  | 9,427,168.437 | 9,451,625
Convertible preferred stock, shares that did not automatically convert (in shares) |  |  |  | 166,341.592 |  |  |  |  |
Related Party |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |
Conversion of Series A and Series B preferred stock to common stock (in shares) |  |  |  |  | 65,681 |  |  |  |
Common stock |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |
Conversion of Series A and Series B preferred stock to common stock (in shares) | 1,518,373 | 2,499,976 |  | 12,263,951 |  |  |  |  |
2024 Securities Purchase Agreement |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |
Gross proceeds |  |  | $ 130,000 |  |  |  |  |  |
Sale of stock, consideration received on transaction |  |  |  |  |  |  | $ 82,800 |  |
2024 Securities Purchase Agreement | Timothy A. Springer, Ph.D. | Related Party |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |
Sale of stock, consideration received on transaction |  |  |  |  |  |  |  | $ 32,737 |
2024 Securities Purchase Agreement | TAS Partners, LLC | Related Party |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |
Sale of stock, consideration received on transaction |  |  |  |  |  |  |  | 14,427 |
2024 Securities Purchase Agreement | Dr. Chafen Lu | Related Party |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |
Sale of stock, consideration received on transaction |  |  |  |  |  |  |  | $ 26 |
2024 Securities Purchase Agreement | Common stock |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |
Sale of stock, number of shares issued in transaction (in shares) |  |  |  |  |  |  | 3,563,247 |  |
2023 Securities Purchase Agreement |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |
Sale of stock, number of shares issued in transaction (in shares) |  |  |  |  |  | 149,330.115 |  |  |
Sale of stock, consideration received on transaction |  |  |  |  |  | $ 60,250 |  |  |
2023 Securities Purchase Agreement | Related Party |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |
Sale of stock, number of shares issued in transaction (in shares) |  |  |  |  |  | 149,330.115 |  |  |
Sale of stock, consideration received on transaction |  |  |  |  |  | $ 60,250 |  |  |
Series B Preferred Stock |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |
Preferred stock, shares authorized (in shares) |  |  | 2,937,903 |  |  |  |  | 437,927 | 0
Convertible preferred stock, shares issued upon conversion (in shares) |  |  | 1 |  |  |  |  |  |
Conversion of Series A and Series B preferred stock to common stock (in shares) |  | (2,499,976) |  |  |  |  |  |  |
Convertible preferred stock, shares that did not automatically convert (in shares) |  | 437,927 |  |  |  |  |  |  |
Series B Preferred Stock | Common stock |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |
Conversion of Series A and Series B preferred stock to common stock (in shares) |  |  |  |  |  |  |  | 2,499,976 |
Series B Preferred Stock | 2024 Securities Purchase Agreement |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |
Sale of stock, number of shares issued in transaction (in shares) |  |  | 2,937,903 |  |  |  | 578,403 |  |
Series B Preferred Stock | 2024 Securities Purchase Agreement | Timothy A. Springer, Ph.D. | Related Party |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |
Sale of stock, number of shares issued in transaction (in shares) |  |  |  |  |  |  |  | 1,636,832 |
Series B Preferred Stock | 2024 Securities Purchase Agreement | TAS Partners, LLC | Related Party |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |
Sale of stock, number of shares issued in transaction (in shares) |  |  |  |  |  |  |  | 721,361 |
Series B Preferred Stock | 2024 Securities Purchase Agreement | Dr. Chafen Lu | Related Party |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |
Sale of stock, number of shares issued in transaction (in shares) |  |  |  |  |  |  |  | 1,307 |
Sale of stock, consideration received on transaction |  |  |  |  |  |  | $ 47,200 |  |
Common stock | 2024 Securities Purchase Agreement |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |
Sale of stock, number of shares issued in transaction (in shares) |  |  | 3,563,247 |  |  |  |  |  |

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