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Marketable Securities | 9 Months Ended
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Sep. 30, 2023
Marketable Securities [Abstract] |
Marketable Securities | Marketable Securities Marketable securities as of September 30, 2023 and December 31, 2022 consisted of the following:
September 30, 2023 | Amortized Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Fair Value
Money market mutual funds | $ | 57,710 |  |  | $ | — |  |  | $ | — |  |  | $ | 57,710 |
United States treasuries | — |  |  | — |  |  | — |  |  | — |
Total marketable securities designated as available-for-sale | $ | 57,710 |  |  | $ | — |  |  | $ | — |  |  | $ | 57,710 |
December 31, 2022 | Amortized Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Fair Value
Money market mutual funds | $ | 30,977 |  |  | $ | — |  |  | $ | — |  |  | $ | 30,977 |
United States treasuries | 24,715 |  |  | — |  |  | (12) |  |  | 24,703 |
Total marketable securities designated as available-for-sale | $ | 55,692 |  |  | $ | — |  |  | $ | (12) |  |  | $ | 55,680 |
Interest income from marketable securities was $744 and $193 during the three months ended September 30, 2023 and 2022, respectively, and $2,019 and $203 during the nine months ended September 30, 2023 and 2022, respectively.

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