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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

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- Definition Indicates type of investment. Includes, but is not limited to, common stock, preferred stock, convertible security, fixed income security, government security, option purchased, warrant, loan participation and assignment, commercial paper, bankers' acceptance, certificates of deposit, short-term security, repurchase agreement, and other investment company. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 210 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (a)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478795/946-210-50-6 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 210 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (b)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478795/946-210-50-1 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 320 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SX 210.12-12A(Column A)(Footnote 2)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147477271/946-320-S99-2 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 320 -Name Accounting Standards Codification -Section S99 -Paragraph 6 -Subparagraph (SX 210.12-14(Column A)(Footnote 2)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147477271/946-320-S99-6 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 320 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-12(Column A)(Footnote 2)(i)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147477271/946-320-S99-1 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 320 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-12(Column C)(Footnote 5)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147477271/946-320-S99-1 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 320 -Name Accounting Standards Codification -Section S99 -Paragraph 3 -Subparagraph (SX 210.12-12B(Column A)(Footnote 1)(a)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147477271/946-320-S99-3 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 320 -Name Accounting Standards Codification -Section S99 -Paragraph 3 -Subparagraph (SX 210.12-12B(Column C)(Footnote 2)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147477271/946-320-S99-3 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 320 -Name Accounting Standards Codification -Section S99 -Paragraph 6 -Subparagraph (SX 210.12-14(Column F)(Footnote 7)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147477271/946-320-S99-6 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 320 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SX 210.12-12A(Column C)(Footnote 4)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147477271/946-320-S99-2 + Details
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