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Marketable Securities | 9 Months Ended
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Sep. 30, 2025
Investments, Debt and Equity Securities [Abstract] |
Marketable Securities | Marketable Securities Fair Values and Gross Unrealized Gains and Losses on Held-to-Maturity Investments The following table summarizes adjusted cost, gross unrealized gains and losses, and fair value by significant investment category. The Company’s investments with original maturities greater than 90 days are classified as held-to-maturity investments on its condensed consolidated balance sheets as of September 30, 2025 and December 31, 2024. See additional information on the Company’s investments in Note 5—Fair Value Measurements.
| Amortized Cost |  | Gross Unrealized |  | Fair Value |  | Net Carrying Value
|  | Gains |  | Losses |  |
As of September 30, 2025 | (in thousands)
Cash equivalents |  |  |  |  |  |  |  |  |
Money market funds | $ | 9,495 |  |  | $ | — |  |  | $ | — |  |  | $ | 9,495 |  |  | $ | 9,495 |
Total cash equivalents | $ | 9,495 |  |  | $ | — |  |  | $ | — |  |  | $ | 9,495 |  |  | $ | 9,495 |
Investments |  |  |  |  |  |  |  |  |
U.S. treasury securities | $ | 9,453 |  |  | $ | 7 |  |  | $ | — |  |  | $ | 9,460 |  |  | $ | 9,453 |
Corporate debt securities | 11,742 |  |  | 10 |  |  | — |  |  | 11,752 |  |  | 11,742 |
Total investments | $ | 21,195 |  |  | $ | 17 |  |  | $ | — |  |  | $ | 21,212 |  |  | $ | 21,195 |
| Amortized Cost |  | Gross Unrealized |  | Fair Value |  | Net Carrying Value
|  | Gains |  | Losses |  |
As of December 31, 2024 | (in thousands)
Investments |  |  |  |  |  |  |  |  |
Commercial paper | $ | 9,139 |  |  | $ | — |  |  | $ | (2) |  |  | $ | 9,137 |  |  | $ | 9,139 |
Total investments | $ | 9,139 |  |  | $ | — |  |  | $ | (2) |  |  | $ | 9,137 |  |  | $ | 9,139 |
Scheduled Maturities The amortized cost and fair value of the Company’s held-to-maturity investments as of September 30, 2025, by contractual maturity, are shown below.
As of September 30, 2025 | Amortized Cost |  | Fair Value
| (in thousands)
Within one year | $ | 21,195 |  |  | $ | 21,212 |
After one year through five years | — |  |  | — |
After 5 years through 10 years | — |  |  | — |
After 10 years | — |  |  | — |
Total investments | $ | 21,195 |  |  | $ | 21,212 |
Aging of Unrealized Losses There were no securities in an unrealized loss position as of September 30, 2025. As of December 31, 2024, certain securities were in an immaterial unrealized loss position for less than twelve months.

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