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Fair Value Measurements - Cash , Cash Equivalents and Short-term Investments (Details) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Short-term investments |  |
Amortized Cost | $ 58,045 | $ 51,328
Gross Unrealized Gains | 59 | 18
Gross Unrealized Losses | (16) | (6)
Fair Value | 58,088 | 51,340
Cash and Cash Equivalents |  |
Cash | 15,381 | 11,804
Cash and cash equivalents | 50,756 | 61,997
US government and agency securities |  |
Short-term investments |  |
Amortized Cost | 36,568 | 36,595
Gross Unrealized Gains | 48 | 18
Gross Unrealized Losses | (7) | (6)
Fair Value | 36,609 | 36,607
Commercial paper |  |
Short-term investments |  |
Amortized Cost | 21,477 | 14,733
Gross Unrealized Gains | 11 | 0
Gross Unrealized Losses | (9) | 0
Fair Value | 21,479 | 14,733
Money market funds |  |
Cash and Cash Equivalents |  |
Money market funds | $ 35,375 | 41,213
Commercial paper |  |
Cash and Cash Equivalents |  |
Commercial paper |  | $ 8,980

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