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Accrued Expenses and Other Current Liabilities
 6 Months Ended
Jun. 30, 2021
Accrued Expenses And Other Current Liabilities [Abstract]  
Accrued Expenses and Other Current Liabilities

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Accrued Expenses and Other Current Liabilities

Accrued expenses and other current liabilities consist of the following:

 

 

 

December 31,

2020

 

 

June 30,

2021

 

 

 

(in thousands)

 

Accrued bonus

 

$

1,763

 

 

$

1,110

 

Professional fees

 

 

1,018

 

 

 

672

 

Research and development costs

 

 

1,829

 

 

 

2,446

 

Other

 

 

31

 

 

 

5

 

 

 

$

4,641

 

 

$

4,233