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Fair Value Measurements (Tables) | 12 Months Ended
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Dec. 31, 2023
Fair Value Measurements |
Schedule of assets measured on a recurring basis at fair value | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Level 1 |  | Level 2 |  | Level 3 |  | Total
​ | ​ | (in thousands)
December 31, 2023 | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Cash equivalents | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Certificate of deposits and time deposits | ​ | $ | 74,262 | ​ | $ | — | ​ | $ | — | ​ | $ | 74,262
Corporate debt | ​ | ​ | — | ​ | ​ | 1,988 | ​ | ​ | — | ​ | ​ | 1,988
Money market cash | ​ | ​ | 21,587 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 21,587
Total | ​ | $ | 95,849 | ​ | $ | 1,988 | ​ | $ | — | ​ | $ | 97,837
Short-term investments | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
U.S. treasuries | ​ | $ | 59,493 | ​ | $ | — | ​ | $ | — | ​ | $ | 59,493
Government agency securities | ​ | ​ | — | ​ | ​ | 41,818 | ​ | ​ | — | ​ | ​ | 41,818
Corporate debt | ​ | ​ | — | ​ | ​ | 35,409 | ​ | ​ | — | ​ | ​ | 35,409
Commercial paper | ​ | ​ | — | ​ | ​ | 9,944 | ​ | ​ | — | ​ | ​ | 9,944
Total | ​ | $ | 59,493 | ​ | $ | 87,171 | ​ | $ | — | ​ | $ | 146,664
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
December 31, 2022 | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Cash equivalents | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Certificate of deposits and time deposits | ​ | $ | 61,135 | ​ | $ | — | ​ | $ | — | ​ | $ | 61,135
Money market cash | ​ | ​ | 405 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 405
Total | ​ | $ | 61,540 | ​ | $ | — | ​ | $ | — | ​ | $ | 61,540
Short-term investments | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
U.S. treasuries | ​ | $ | 62,849 | ​ | $ | — | ​ | $ | — | ​ | $ | 62,849
Government agency securities | ​ | ​ | — | ​ | ​ | 27,366 | ​ | ​ | — | ​ | ​ | 27,366
Corporate debt | ​ | ​ | — | ​ | ​ | 41,591 | ​ | ​ | — | ​ | ​ | 41,591
Commercial paper | ​ | ​ | — | ​ | ​ | 15,682 | ​ | ​ | — | ​ | ​ | 15,682
Total | ​ | $ | 62,849 | ​ | $ | 84,639 | ​ | $ | — | ​ | $ | 147,488

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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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