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Fair Value Measurements (Tables) | 3 Months Ended
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Mar. 31, 2024
Table Text Block Supplement [Abstract] |
Financial Instruments Measured At Fair Value On A Recurring Basis | The following table summarizes the Company's financial instruments measured at fair value on a recurring basis as of March 31, 2024 and December 31, 2023 (in thousands). Included within cash and cash equivalents on the condensed consolidated balance sheets, but excluded from the fair value hierarchy table, are cash deposits held at financial institutions.
|  | March 31, 2024 |
|  | Level 1 |  |  | Level 2 |  |  | Level 3 |  |  | Total |
Assets: |  |  |  |  |  |  |  |  |  |  |  |
Cash equivalents: |  |  |  |  |  |  |  |  |  |  |  |
Money market funds |  | $ | 4,098 |  |  | $ | — |  |  | $ | — |  |  | $ | 4,098 |
Total cash equivalents |  | $ | 4,098 |  |  | $ | — |  |  | $ | — |  |  | $ | 4,098 |
Short-term investments: |  |  |  |  |  |  |  |  |  |  |  |
U.S. government securities |  | $ | — |  |  | $ | 20,441 |  |  | $ | — |  |  | $ | 20,441 |
U.S. government agency securities |  |  | — |  |  |  | 16,766 |  |  |  | — |  |  |  | 16,766 |
Total short-term investments |  | $ | — |  |  | $ | 37,207 |  |  | $ | — |  |  | $ | 37,207 |
Total financial assets |  | $ | 4,098 |  |  | $ | 37,207 |  |  | $ | — |  |  | $ | 41,305 |
|  | December 31, 2023 |
|  | Level 1 |  |  | Level 2 |  |  | Level 3 |  |  | Total |
Assets: |  |  |  |  |  |  |  |  |  |  |  |
Cash equivalents: |  |  |  |  |  |  |  |  |  |  |  |
Money market funds |  | $ | 4,246 |  |  | $ | — |  |  | $ | — |  |  | $ | 4,246 |
Total cash equivalents |  | $ | 4,246 |  |  | $ | — |  |  | $ | — |  |  | $ | 4,246 |
Short-term investments: |  |  |  |  |  |  |  |  |  |  |  |
U.S. government securities |  | $ | — |  |  | $ | 33,213 |  |  | $ | — |  |  | $ | 33,213 |
U.S. government agency securities |  |  | — |  |  |  | 13,277 |  |  |  | — |  |  |  | 13,277 |
Total short-term investments |  | $ | — |  |  | $ | 46,490 |  |  | $ | — |  |  | $ | 46,490 |
Total financial assets |  | $ | 4,246 |  |  | $ | 46,490 |  |  | $ | — |  |  | $ | 50,736 |

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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://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482106/820-10-50-2 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -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 + Details
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