v3.26.3
Fair Values on Financial Assets and Liabilities (Detail) - USD ($)
$ in Thousands
Sep. 30, 2026
Dec. 31, 2025
Fair value of financial assets and liabilities    
Total short-term investments $ 42,812 $ 64,728
Investment, Type [Extensible Enumeration] us-gaap:ShortTermInvestmentsMember us-gaap:ShortTermInvestmentsMember
Money market funds    
Fair value of financial assets and liabilities    
Total short-term investments $ 2,050 $ 1,810
United States government agency securities    
Fair value of financial assets and liabilities    
Total short-term investments $ 11,579 $ 23,479
Investment, Type [Extensible Enumeration] us-gaap:ShortTermInvestmentsMember us-gaap:ShortTermInvestmentsMember
Corporate debt securities    
Fair value of financial assets and liabilities    
Total short-term investments $ 26,956 $ 36,822
Investment, Type [Extensible Enumeration] us-gaap:ShortTermInvestmentsMember us-gaap:ShortTermInvestmentsMember
Mortgage-backed securities    
Fair value of financial assets and liabilities    
Total short-term investments $ 2,227 $ 2,617
Investment, Type [Extensible Enumeration] us-gaap:ShortTermInvestmentsMember us-gaap:ShortTermInvestmentsMember
Level 1    
Fair value of financial assets and liabilities    
Total short-term investments $ 2,050 $ 1,810
Investment, Type [Extensible Enumeration] us-gaap:ShortTermInvestmentsMember us-gaap:ShortTermInvestmentsMember
Level 1 | Money market funds    
Fair value of financial assets and liabilities    
Total short-term investments $ 2,050 $ 1,810
Level 2    
Fair value of financial assets and liabilities    
Total short-term investments $ 40,762 $ 62,918
Investment, Type [Extensible Enumeration] us-gaap:ShortTermInvestmentsMember us-gaap:ShortTermInvestmentsMember
Level 2 | United States government agency securities    
Fair value of financial assets and liabilities    
Total short-term investments $ 11,579 $ 23,479
Investment, Type [Extensible Enumeration] us-gaap:ShortTermInvestmentsMember us-gaap:ShortTermInvestmentsMember
Level 2 | Corporate debt securities    
Fair value of financial assets and liabilities    
Total short-term investments $ 26,956 $ 36,822
Investment, Type [Extensible Enumeration] us-gaap:ShortTermInvestmentsMember us-gaap:ShortTermInvestmentsMember
Level 2 | Mortgage-backed securities    
Fair value of financial assets and liabilities    
Total short-term investments $ 2,227 $ 2,617
Investment, Type [Extensible Enumeration] us-gaap:ShortTermInvestmentsMember us-gaap:ShortTermInvestmentsMember