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Fair Value Measurements (Tables) | 9 Months Ended
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Sep. 30, 2024
Fair Value Disclosures [Abstract] |
Summary of Financial Assets Fair Value Measurement on Recurring Basis | The following table presents the Company’s financial assets, which consist of cash equivalents and investments classified as available-for-sale investments, that are measured at fair value on a recurring basis (in thousands):
|  | September 30, 2024 |
|  | Level |  | Amortized Cost |  |  | Unrealized Gain |  |  | Unrealized Loss |  |  | Estimated Fair Value |
Cash equivalents: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Money market funds |  | Level 1 |  | $ | 12,025 |  |  | $ | — |  |  | $ | — |  |  | $ | 12,025 |
Commercial paper |  | Level 2 |  |  | 9,933 |  |  |  | 2 |  |  |  | — |  |  |  | 9,935 |
Short-term investments: |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. Treasury securities |  | Level 1 |  |  | 31,626 |  |  |  | 69 |  |  |  | — |  |  |  | 31,695 |
Commercial paper |  | Level 2 |  |  | 17,706 |  |  |  | 23 |  |  |  | — |  |  |  | 17,729 |
U.S. Government agency securities |  | Level 2 |  |  | 8,498 |  |  |  | 15 |  |  |  | — |  |  |  | 8,513 |
Corporate debt securities |  | Level 2 |  |  | 1,982 |  |  |  | 3 |  |  |  | — |  |  |  | 1,985 |
Total |  |  |  | $ | 81,770 |  |  | $ | 112 |  |  | $ | — |  |  | $ | 81,882 |
|  | December 31, 2023 |
|  | Level |  | Amortized Cost |  |  | Unrealized Gain |  |  | Unrealized Loss |  |  | Estimated Fair Value |
Cash equivalents: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Money market funds |  | Level 1 |  | $ | 4,478 |  |  | $ | — |  |  | $ | — |  |  | $ | 4,478 |
Short-term investments: |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. Treasury securities |  | Level 1 |  |  | 15,649 |  |  |  | 31 |  |  |  | — |  |  |  | 15,680 |
U.S. Treasury securities |  | Level 2 |  |  | 1,247 |  |  |  | — |  |  |  | (1 | ) |  |  | 1,246 |
Commercial paper |  | Level 2 |  |  | 41,472 |  |  |  | 47 |  |  |  | (2 | ) |  |  | 41,517 |
U.S. Government agency securities |  | Level 2 |  |  | 19,479 |  |  |  | 30 |  |  |  | (5 | ) |  |  | 19,504 |
Asset-backed securities |  | Level 2 |  |  | 8,770 |  |  |  | 12 |  |  |  | (3 | ) |  |  | 8,779 |
Corporate debt securities |  | Level 2 |  |  | 4,914 |  |  |  | 8 |  |  |  | — |  |  |  | 4,922 |
Long-term investments: |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. Treasury securities |  | Level 1 |  |  | 23,542 |  |  |  | 131 |  |  |  | — |  |  |  | 23,673 |
U.S. Government agency securities |  | Level 2 |  |  | 3,494 |  |  |  | 28 |  |  |  | (1 | ) |  |  | 3,521 |
Total |  |  |  | $ | 123,045 |  |  | $ | 287 |  |  | $ | (12 | ) |  | $ | 123,320 |

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- Definition Tabular disclosure of assets, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, by class that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 + Details
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