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Fair Value Measurements and Fair Value of Financial Instruments (Tables) | 9 Months Ended
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Sep. 30, 2025
Fair Value Disclosures [Abstract] |
Schedule of marketable securities, available-for-sale | The following tables set forth the Company’s financial assets that were measured at fair value on a recurring basis by level within the fair value hierarchy (in thousands):
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​ |  | ​ | ​ | ​ | September 30, 2025
​ | ​ | ​ | Valuation |  | Amortized |  | Unrealized |  | Unrealized |  | ​
​ | ​ | ​ | Hierarchy | ​ | Cost | ​ | Gains | ​ | Losses | ​ | Fair Value
Assets | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Cash equivalents: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Money market funds | ​ | ​ | Level 1 | ​ | $ | 32,083 | ​ | $ | — | ​ | $ | — | ​ | $ | 32,083
Total cash equivalents | ​ | ​ | ​ | ​ | ​ | 32,083 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 32,083
Short-term marketable securities: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Commercial paper |  | ​ | Level 2 | ​ | ​ | 19,845 |  | ​ | 13 |  | ​ | — |  | ​ | 19,858
Corporate debt securities | ​ | ​ | Level 2 | ​ | ​ | 1,485 | ​ | ​ | 2 | ​ | ​ | — | ​ | ​ | 1,487
U.S. Treasury securities | ​ | ​ | Level 2 | ​ | ​ | 52,227 | ​ | ​ | 66 | ​ | ​ | (1) | ​ | ​ | 52,292
Agency securities | ​ | ​ | Level 2 | ​ | ​ | 4,491 | ​ | ​ | 2 | ​ | ​ | — | ​ | ​ | 4,493
Asset-backed securities | ​ | ​ | Level 2 | ​ | ​ | 6,054 | ​ | ​ | 13 | ​ | ​ | — | ​ | ​ | 6,067
Total short-term marketable securities | ​ | ​ | ​ | ​ | ​ | 84,102 | ​ | ​ | 96 | ​ | ​ | (1) | ​ | ​ | 84,197
Long-term marketable securities: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Commercial paper | ​ | ​ | Level 2 | ​ | ​ | 2,757 | ​ | ​ | — | ​ | ​ | (1) | ​ | ​ | 2,756
U.S. Treasury securities | ​ | ​ | Level 2 | ​ | ​ | 6,027 | ​ | ​ | 23 | ​ | ​ | — | ​ | ​ | 6,050
Total long-term marketable securities | ​ | ​ | ​ | ​ | ​ | 8,784 | ​ | ​ | 23 | ​ | ​ | (1) | ​ | ​ | 8,806
Total cash equivalents and marketable securities | ​ | ​ | ​ | ​ | $ | 124,969 | ​ | $ | 119 | ​ | $ | (2) | ​ | $ | 125,086
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​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | December 31, 2024
​ | ​ | ​ | Valuation |  | Amortized |  | Unrealized |  | Unrealized |  | ​
​ | ​ | ​ | Hierarchy | ​ | Cost | ​ | Gains | ​ | Losses | ​ | Fair Value
Assets | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Cash equivalents: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Money market funds | ​ | ​ | Level 1 | ​ | $ | 72,800 | ​ | $ | — | ​ | $ | — | ​ | $ | 72,800
U.S. Treasury securities | ​ | ​ | Level 2 | ​ | ​ | 2,477 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 2,477
Total cash equivalents | ​ | ​ | ​ | ​ | ​ | 75,277 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 75,277
Short-term marketable securities: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Commercial paper |  | ​ | Level 2 | ​ | ​ | 14,447 |  | ​ | 25 |  | ​ | (1) |  | ​ | 14,471
Corporate debt securities | ​ | ​ | Level 2 | ​ | ​ | 6,909 | ​ | ​ | 7 | ​ | ​ | — | ​ | ​ | 6,916
U.S. Treasury securities | ​ | ​ | Level 2 | ​ | ​ | 27,493 | ​ | ​ | 123 | ​ | ​ | — | ​ | ​ | 27,616
Agency securities | ​ | ​ | Level 2 | ​ | ​ | 21,345 | ​ | ​ | 12 | ​ | ​ | (2) | ​ | ​ | 21,355
Asset-backed securities | ​ | ​ | Level 2 | ​ | ​ | 5,030 | ​ | ​ | 22 | ​ | ​ | — | ​ | ​ | 5,052
Total short-term marketable securities | ​ | ​ | ​ | ​ | ​ | 75,224 | ​ | ​ | 189 | ​ | ​ | (3) | ​ | ​ | 75,410
Long-term marketable securities: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
U.S. Treasury securities | ​ | ​ | Level 2 | ​ | ​ | 4,884 | ​ | ​ | 36 | ​ | ​ | — | ​ | ​ | 4,920
Asset-backed securities | ​ | ​ | Level 2 | ​ | ​ | 2,480 | ​ | ​ | 8 | ​ | ​ | — | ​ | ​ | 2,488
Total long-term marketable securities | ​ | ​ | ​ | ​ | ​ | 7,364 | ​ | ​ | 44 | ​ | ​ | — | ​ | ​ | 7,408
Total cash equivalents and marketable securities | ​ | ​ | ​ | ​ | $ | 157,865 | ​ | $ | 233 | ​ | $ | (3) | ​ | $ | 158,095

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