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Accounts Payable and Accrued Expenses (Tables)
6 Months Ended
Jun. 30, 2021
Payables And Accruals [Abstract]  
Schedule of Accounts Payable and Accrued Expenses

Accounts payable and accrued expenses consist of the following:

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June 30, 2021

    

December 31, 2020

Accounts payable

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$

3,386

​

$

4,893

Accrued research projects

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6,193

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6,194

Accrued compensation and benefits

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3,147

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4,955

Accrued professional fees and other

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767

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839

Total

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$

13,493

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$

16,881