Fair Values on Financial Assets and Liabilities (Detail) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Fair value of financial assets and liabilities
Total short-term investments	$ 61,959	$ 59,267
Investment, Type [Extensible Enumeration]	us-gaap:ShortTermInvestmentsMember	us-gaap:ShortTermInvestmentsMember
Money market funds
Fair value of financial assets and liabilities
Total short-term investments	$ 1,773	$ 5,062
United States government agency securities
Fair value of financial assets and liabilities
Total short-term investments	$ 24,062	$ 19,354
Investment, Type [Extensible Enumeration]	us-gaap:ShortTermInvestmentsMember	us-gaap:ShortTermInvestmentsMember
Corporate debt securities
Fair value of financial assets and liabilities
Total short-term investments	$ 33,371	$ 31,760
Investment, Type [Extensible Enumeration]	us-gaap:ShortTermInvestmentsMember	us-gaap:ShortTermInvestmentsMember
Mortgage-backed securities
Fair value of financial assets and liabilities
Total short-term investments	$ 2,753	$ 3,091
Investment, Type [Extensible Enumeration]	us-gaap:ShortTermInvestmentsMember	us-gaap:ShortTermInvestmentsMember
Level 1
Fair value of financial assets and liabilities
Total short-term investments	$ 1,773	$ 5,062
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	$ 1,773	$ 5,062
Level 2
Fair value of financial assets and liabilities
Total short-term investments	$ 60,186	$ 54,205
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	$ 24,062	$ 19,354
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	$ 33,371	$ 31,760
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	$ 2,753	$ 3,091
Investment, Type [Extensible Enumeration]	us-gaap:ShortTermInvestmentsMember	us-gaap:ShortTermInvestmentsMember