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

Accrued expenses consisted of the following:

 

 

 

June 30,

2021

 

 

December 31,

2020

 

Employee expenses

 

$

4,700,704

 

 

$

8,967,126

 

Research and development expenses

 

 

7,451,665

 

 

 

8,113,043

 

Professional fees and other

 

 

1,320,597

 

 

 

1,779,671

 

Total

 

$

13,472,966

 

 

$

18,859,840