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Fair Value Measurements (Tables) | 6 Months Ended
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Jun. 30, 2026
Fair Value Disclosures [Abstract] |
Schedule of Assets Measured at Fair Value on Recurring Basis | As of June 30, 2026 and December 31, 2025, assets measured at fair value on a recurring basis were as follows (in thousands):
|  | June 30, 2026 |
|  | Total |  |  | Level 1 |  |  | Level 2 |  |  | Level 3 |
Assets |  |  |  |  |  |  |  |  |  |  |  |
Cash equivalents |  |  |  |  |  |  |  |  |  |  |  |
Money market mutual funds |  | $ | 62,034 |  |  | $ | 62,034 |  |  | $ | — |  |  | $ | — |
Total cash equivalents |  | $ | 62,034 |  |  | $ | 62,034 |  |  | $ | — |  |  | $ | — |
Short-term investments |  |  |  |  |  |  |  |  |  |  |  |
Scilex Holding Company common stock |  | $ | 21 |  |  | $ | 21 |  |  | $ | — |  |  | $ | — |
Sorrento Therapeutics, Inc. common stock |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Total short-term investments |  | $ | 21 |  |  | $ | 21 |  |  | $ | — |  |  | $ | — |
|  | December 31, 2025 |
|  | Total |  |  | Level 1 |  |  | Level 2 |  |  | Level 3 |
Assets |  |  |  |  |  |  |  |  |  |  |  |
Cash equivalents |  |  |  |  |  |  |  |  |  |  |  |
Money market mutual funds |  | $ | 29,379 |  |  | $ | 29,379 |  |  | $ | — |  |  | $ | — |
U.S. Treasury obligations |  |  | 4,999 |  |  |  | — |  |  |  | 4,999 |  |  |  | — |
Total cash equivalents |  | $ | 34,378 |  |  | $ | 29,379 |  |  | $ | 4,999 |  |  | $ | — |
Short-term investments |  |  |  |  |  |  |  |  |  |  |  |
Scilex Holding Company common stock |  | $ | 30 |  |  | $ | 30 |  |  | $ | — |  |  | $ | — |
Sorrento Therapeutics, Inc. common stock |  |  | 2 |  |  |  | 2 |  |  |  | — |  |  |  | — |
U.S. Treasury obligations |  |  | 62,944 |  |  |  | — |  |  |  | 62,944 |  |  |  | — |
Total short-term investments |  | $ | 62,976 |  |  | $ | 32 |  |  | $ | 62,944 |  |  | $ | — |

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- Definition Tabular disclosure of assets and liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). + 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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