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Summary of Significant Accounting Policies - Additional Information (Details) | 12 Months Ended
--- | ---
Dec. 31, 2021 USD ($) ReportableUnit Segment | Dec. 31, 2020 USD ($) Segment
Summary Of Significant Accounting Policies [Line Items] |  |
Cash equivalents investments with original maturities | $ 0 | $ 0
Impairment loss | 0 | 0
Impairment charges | $ 0 |
Number of reporting units | ReportableUnit | 1 |
Qualifying expenditures related to research | $ 0 | 300,000
Interest or penalties related to income tax matters | $ 0 | $ 0
Number of operating segment | Segment | 1 | 1
ASU 2019-12 [Member] |  |
Summary Of Significant Accounting Policies [Line Items] |  |
Change in accounting principle, accounting standards update, adopted [true false] | true |
Change in accounting principle, accounting standards update, adoption date | Jan. 01, 2021 |
Change in accounting principle, accounting standards update, immaterial effect [true false] | true |
BARDA Contract [Member] | Development [Member] |  |
Summary Of Significant Accounting Policies [Line Items] |  |
Revenue recognized | $ 0 | $ 300,000
Minimum [Member] |  |
Summary Of Significant Accounting Policies [Line Items] |  |
Useful lives of the assets | 3 years |
Maximum [Member] |  |
Summary Of Significant Accounting Policies [Line Items] |  |
Useful lives of the assets | 5 years |

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