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License Arrangements - Additional Information (Details) - UC Agreements - USD ($) | 1 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | ---
Jul. 31, 2021 | Jan. 31, 2016 | Dec. 31, 2021 | Dec. 31, 2020 | Jan. 31, 2019 | Dec. 31, 2018
Research And Development Arrangement Contract To Perform For Others [Line Items] |  |  |  |  |  |
Non-refundable license fee payable upon execution |  |  |  |  |  | $ 5,000
Non-refundable license fee payable upon execution every year thereafter until sales of a licensed product and payment of royalties |  |  |  |  |  | 5,000
Amount obligated to pay upon closing first qualified financing at option of UC Regents |  |  |  |  |  | $ 50,000
Percentage of equity interest upon closing of first qualified financing at option of UC Regents |  |  |  |  |  | 3.00%
Percentage of equity interests issued as common stock |  | 6.00% |  |  |  |
Amount paid non-refundable license fees | $ 100,000 |  |  |  | $ 50,000 |
Non-refundable license fee payable annually | 10,000 |  |  |  | $ 5,000 |
Incurred expenses |  |  | $ 300,000 | $ 200,000 |  |
Maximum |  |  |  |  |  |
Research And Development Arrangement Contract To Perform For Others [Line Items] |  |  |  |  |  |
Development milestones | 3,900,000 |  | 3,100,000 |  |  |
Minimum |  |  |  |  |  |
Research And Development Arrangement Contract To Perform For Others [Line Items] |  |  |  |  |  |
Annual royalty | $ 100,000 |  | $ 100,000 |  |  |

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- Definition Non-refundable license fee payable upon execution. + References No definition available. + Details
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