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Fair Value Measurements - Hierarchy (Details) - USD ($) $ in Thousands | Sep. 30, 2024 | Mar. 25, 2024 | Dec. 31, 2023
--- | --- | --- | ---
Fair value assets and liabilities |  |  |
Warrant derivative liability | $ 4,367 |  | $ 1,905
Warrants 2024, Accompanying Warrants |  |  |
Fair value assets and liabilities |  |  |
Warrant derivative liability | 2,935 | $ 19,347 |
Level 1 |  |  |
Fair value assets and liabilities |  |  |
Fair value money market accounts | 36,672 |  | $ 64,860
Recurring |  |  |
Fair value assets and liabilities |  |  |
Warrant derivative liability | 4,367 |  |
Recurring | Equity Investment Rights |  |  |
Fair value assets and liabilities |  |  |
Warrant derivative liability | 1,311 |  |
Recurring | OnkosXcel Warrants |  |  |
Fair value assets and liabilities |  |  |
Warrant derivative liability | 121 |  |
Recurring | Warrants 2024, Accompanying Warrants |  |  |
Fair value assets and liabilities |  |  |
Warrant derivative liability | 2,935 |  |
Recurring | Level 2 |  |  |
Fair value assets and liabilities |  |  |
Warrant derivative liability | 2,935 |  |
Recurring | Level 2 | Warrants 2024, Accompanying Warrants |  |  |
Fair value assets and liabilities |  |  |
Warrant derivative liability | 2,935 |  |
Recurring | Level 3 |  |  |
Fair value assets and liabilities |  |  |
Warrant derivative liability | 1,432 |  |
Recurring | Level 3 | Equity Investment Rights |  |  |
Fair value assets and liabilities |  |  |
Warrant derivative liability | 1,311 |  |
Recurring | Level 3 | OnkosXcel Warrants |  |  |
Fair value assets and liabilities |  |  |
Warrant derivative liability | 121 |  |
Recurring | Fair Value |  |  |
Fair value assets and liabilities |  |  |
Warrant derivative liability | 4,367 |  |
Recurring | Fair Value | Equity Investment Rights |  |  |
Fair value assets and liabilities |  |  |
Warrant derivative liability | 1,311 |  |
Recurring | Fair Value | OnkosXcel Warrants |  |  |
Fair value assets and liabilities |  |  |
Warrant derivative liability | 121 |  |
Recurring | Fair Value | Warrants 2024, Accompanying Warrants |  |  |
Fair value assets and liabilities |  |  |
Warrant derivative liability | $ 2,935 |  |

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- Definition Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 + Details
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