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FA212 Asset Acquisition - Additional Information (Detail) - USD ($) |  |  | 3 Months Ended |  |
--- | --- | --- | --- | --- | ---
Feb. 28, 2025 | Sep. 19, 2024 | Sep. 30, 2024 | Jun. 30, 2025 | Dec. 31, 2024
Asset Acquisition [Line Items] |  |  |  |  |
Derivative liabilities at fair value |  |  |  | $ 5,700,000 | $ 3,150,000
FA212 LLC [Member] |  |  |  |  |
Asset Acquisition [Line Items] |  |  |  |  |
Agreement date |  | Sep. 19, 2024 |  |  |
Upfront payment |  |  | $ 1,000,000 |  |
Derivative liabilities at fair value |  |  | 3,400,000 | $ 5,700,000 | 3,200,000
Aggregate acquisition cost |  |  | 5,100,000 |  |
Transaction costs |  |  | 700,000 |  |
First development milestone payable |  |  |  |  | 5,000,000
Milestone payment |  |  |  |  | $ 5,000,000
FA212 LLC [Member] | Common Stock [Member] |  |  |  |  |
Asset Acquisition [Line Items] |  |  |  |  |
First development milestone payment in shares | 975,496 |  |  |  |
FA212 LLC [Member] | Maximum [Member] |  |  |  |  |
Asset Acquisition [Line Items] |  |  |  |  |
Development milestone payments |  |  | 34,000,000 |  |
Cumulative sales milestone payments |  |  | 21,000,000 |  |
Assumed contingent development milestone payments |  |  | 4,200,000 |  |
Assumed regulatory milestone payments |  |  | 13,000,000 |  |
Assumed cumulative sales milestone payments |  |  | $ 27,500,000 |  |

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- Definition Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. 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