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Accrued Expenses (Tables)
9 Months Ended
Sep. 30, 2019
Payables And Accruals [Abstract]  
Schedule of Accrued Expenses

Accrued expenses consist of the following (in thousands):

 

 

 

September 30,

 

 

December 31,

 

 

 

2019

 

 

2018

 

Payroll related

 

$

2,116

 

 

$

2,906

 

Professional fees

 

 

427

 

 

 

306

 

Research and development

 

 

1,322

 

 

 

1,585

 

Other

 

 

163

 

 

 

196

 

 

 

$

4,028

 

 

$

4,993