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License Agreements (Details) - USD ($) $ in Thousands | Mar. 31, 2024 | Oct. 03, 2023 | Jul. 31, 2023 | Dec. 31, 2015
--- | --- | --- | --- | ---
Impilo |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |
Investment owned (in shares) |  |  | 766,000 |
Sanford Burnham Prebys |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |
Shares held by third party (in shares) | 0 |  |  |
Sanford Burnham Prebys | Impilo |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |
Investment owned (in shares) |  | 191,500 |  |
Sanford Burnham Prebys | Collaborative Arrangement, Transaction with Party to Collaborative Arrangement |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |
Shares issued under license agreement (in shares) |  |  |  | 382,030
Annual license maintenance fee |  |  |  | $ 10,000
Annual license maintenance fee, year seven |  |  |  | 20,000
Potential milestone payments |  |  |  | $ 10,600
Royalties, net of sales |  |  |  | 4.00%
Sublicensing fee |  |  |  | 25.00%

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