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Accrued and Other Current Liabilities | 12 Months Ended
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Dec. 31, 2023
Accrued and Other Current Liabilities [Abstract] |
Accrued and Other Current Liabilities | 9. Accrued and Other Current Liabilities Accrued and other current liabilities consisted of the following at December 31, 2023 and 2022 (in thousands): ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | December 31, | ​ | December 31,
​ |  | 2023 |  | 2022
Accrued research and development | ​ | $ | 3,668 | ​ | $ | 3,611
Accrued legal and professional fees | ​ |  | 570 | ​ |  | 333
Other current liabilities | ​ |  | 380 | ​ |  | 1,006
​ | ​ | $ | 4,618 | ​ | $ | 4,950
​ ​ Other current liabilities include accrued payroll costs of approximately $0 and $680,000 for the years ended December 31, 2023 and 2022 respectively.

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- Definition The entire disclosure for accounts payable, accrued expenses, and other liabilities that are classified as current at the end of the reporting period. + References No definition available. + Details
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