Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies - Additional Information (Detail)

v3.23.1
Summary of Significant Accounting Policies - Additional Information (Detail)
 3 Months Ended
Mar. 10, 2021
USD ($)
Mar. 31, 2023
USD ($)
Mar. 31, 2022
USD ($)
Dec. 31, 2022
USD ($)
Summary Of Significant Accounting Policies [Line Items]        
Maturity period of highly liquid investments   three months or less    
Realized gains or losses on marketable securities   $ 0 $ 0  
Number of securities in unrealized loss position for more than 12 months   0   0
Grants receivable recognized   $ 2,700,000 $ 2,100,000  
Grants receivable   1,700,000   $ 2,600,000
Grants remaining to be awarded   2,600,000    
BARDA Contract [Member] | Base Period BARDA Funding [Member]        
Summary Of Significant Accounting Policies [Line Items]        
Total funding receives in future $ 9,800,000      
Barda Extended Contract [Member] | Base Period BARDA Funding [Member]        
Summary Of Significant Accounting Policies [Line Items]        
Total funding receives in future   6,600,000    
Level 1 [Member]        
Summary Of Significant Accounting Policies [Line Items]        
Liabilities   0    
Level 2 [Member]        
Summary Of Significant Accounting Policies [Line Items]        
Liabilities   $ 0