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Financial Instruments (Tables) | 6 Months Ended
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Jun. 30, 2024
Financial Instruments |
Schedule of assets and liabilities measured fair value on a recurring basis | Below is a summary of assets and liabilities measured at fair value on a recurring basis (in thousands): ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | As of June 30, 2024
​ | ​ | Quoted Prices | ​ | Significant | ​ | Significant | ​ | ​
​ | ​ | in Active | ​ | Observable | ​ | Unobservable | ​ | ​
​ | ​ | Markets | ​ | Inputs | ​ | Inputs | ​ | ​
​ |  | (Level 1) |  | (Level 2) |  | (Level 3) |  | Total
Assets: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Cash and cash equivalents: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Money market funds | ​ | $ | 54,269 | ​ | $ | — | ​ | $ | — | ​ | $ | 54,269
Treasury bills | ​ | ​ | 4,988 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 4,988
Short-term investments: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Treasury bills | ​ | ​ | 108,672 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 108,672
Reverse repurchase agreements | ​ | ​ | — | ​ | ​ | 100,000 | ​ | ​ | — | ​ | ​ | 100,000
Treasury notes | ​ | ​ | 58,819 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 58,819
Total | ​ | $ | 226,748 | ​ | $ | 100,000 | ​ | $ | — | ​ | $ | 326,748
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | As of December 31, 2023
​ | ​ | Quoted Prices | ​ | Significant | ​ | Significant | ​ | ​
​ | ​ | in Active | ​ | Observable | ​ | Unobservable | ​ | ​
​ | ​ | Markets | ​ | Inputs | ​ | Inputs | ​ | ​
​ |  | (Level 1) |  | (Level 2) |  | (Level 3) |  | Total
Assets: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Cash and cash equivalents: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Money market funds | ​ | $ | 7,709 | ​ | $ | — | ​ | $ | — | ​ | $ | 7,709
Short-term investments: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Reverse repurchase agreements | ​ | ​ | — | ​ | ​ | 71,000 | ​ | ​ | — | ​ | ​ | 71,000
Total | ​ | $ | 7,709 | ​ | $ | 71,000 | ​ | $ | — | ​ | $ | 78,709

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- Definition Tabular disclosure of assets and liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, 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://www.xbrl.org/2009/role/commonPracticeRef -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 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 + Details
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