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Accrued Expenses (Tables)
9 Months Ended
Sep. 30, 2018
Payables And Accruals [Abstract]  
Schedule of Accrued Expenses

Accrued expenses consisted of the following (in thousands):

 

 

 

September 30,

 

 

December 31,

 

 

 

2018

 

 

2017

 

Accrued payroll and related expenses

 

$

2,003

 

 

$

1,542

 

Accrued research and development expenses

 

 

5,510

 

 

 

3,930

 

Accrued professional fees

 

 

647

 

 

 

556

 

Accrued other

 

 

246

 

 

 

92

 

 

 

$

8,406

 

 

$

6,120