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Marketable Securities | 6 Months Ended
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Jun. 30, 2026
Marketable Securities [Abstract] |
Marketable Securities | 3. Marketable Securities The following tables summarize the amortized cost and estimated fair value of the Company’s marketable securities, which are considered to be available-for-sale investments (in thousands):
|  | June 30, 2026 |
|  | Amortized Cost |  |  | Unrealized Gain |  |  | Unrealized Loss |  |  | Fair Value |
Marketable securities, current: |  |  |  |  |  |  |  |  |  |  |  |
U.S. Treasury securities |  | $ | 28,379 |  |  | $ | (14 | ) |  | $ | — |  |  | $ | 28,365 |
Commercial paper |  |  | 38,660 |  |  |  | (37 | ) |  |  | — |  |  |  | 38,623 |
Corporate debt securities |  |  | 17,749 |  |  |  | (10 | ) |  |  | — |  |  |  | 17,739 |
U.S. government agency debt securities |  |  | 3,505 |  |  |  | (4 | ) |  |  | — |  |  |  | 3,501 |
Marketable securities, long-term: |  |  |  |  |  |  |  |  |  |  |  |
U.S. Treasury securities |  |  | 46,485 |  |  |  | (29 | ) |  |  | — |  |  |  | 46,456 |
Corporate debt securities |  |  | 14,648 |  |  |  | (1 | ) |  |  | — |  |  |  | 14,647 |
Total marketable securities |  | $ | 149,426 |  |  | $ | (95 | ) |  | $ | — |  |  | $ | 149,331 |
|  | December 31, 2025 |
|  | Amortized Cost |  |  | Unrealized Gain |  |  | Unrealized Loss |  |  | Fair Value |
Marketable securities, current: |  |  |  |  |  |  |  |  |  |  |  |
U.S. Treasury securities |  | $ | 30,049 |  |  | $ | 75 |  |  | $ | — |  |  | $ | 30,124 |
Commercial paper |  |  | 30,699 |  |  |  | 26 |  |  |  | — |  |  |  | 30,725 |
Corporate debt securities |  |  | 25,162 |  |  |  | 33 |  |  |  | — |  |  |  | 25,195 |
Total marketable securities |  | $ | 85,910 |  |  | $ | 134 |  |  | $ | — |  |  | $ | 86,044 |
As of June 30, 2026, all marketable securities held by the Company had remaining contractual maturities of one year or less, except for U.S. treasuries and corporate debt securities with a fair value of $46.5 million and $14.6 million, respectively, with maturities of one to two years. As of December 31, 2025, all marketable securities held by the Company had remaining contractual maturities of one year or less. The Company has determined that there were no material changes in the credit risk, therefore, no impairment was recognized on its debt securities.

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- Definition The entire disclosure for investment in debt and equity securities and other assets at fair value and held for trading. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 942 -SubTopic 320 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org/942-320/tableOfContent Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 940 -SubTopic 320 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org/940-320/tableOfContent Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name Regulation S-K (SK) -Number 229 -Section 1403 -Paragraph b -Publisher SEC Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 320 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org/320/tableOfContent Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 10 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-10 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6B -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-6B Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6B -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-6B + Details
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