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Collaboration and License Agreements - Cyrus Biotechnology, Inc. (Narrative) (Details) - USD ($) $ / shares in Units, $ in Thousands | Sep. 07, 2021 | Dec. 31, 2024 | Dec. 31, 2023
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Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |
Equity securities without readily determinable fair value, amount |  | $ 2,000 | $ 2,000
Cyrus Biotechnology, Inc. |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |
Milestone payment | $ 1,500,000 |  |
Equity securities, stock purchase agreement, shares purchased (in shares) | 2,326,934 |  |
Equity securities without readily determinable fair value, amount | $ 2,000 | $ 2,000 |
Cyrus Biotechnology, Inc. | Series B Preferred Stock Purchase Agreement |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |
Equity securities, stock purchase agreement, par value per share (in dollars per share) | $ 0.0001 |  |
Equity securities, stock purchase agreement, purchase price per share (in dollars per share) | $ 0.8595 |  |

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