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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