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Accrued Expenses (Tables)
3 Months Ended
Mar. 31, 2019
Payables And Accruals [Abstract]  
Schedule of Accrued Expenses

Accrued expenses consists of the following (in thousands):

 

 

 

March 31,

 

 

December 31,

 

 

 

2019

 

 

2018

 

Payroll related

 

$

1,165

 

 

$

2,906

 

Professional fees

 

 

544

 

 

 

306

 

Research and development

 

 

2,023

 

 

 

1,585

 

Other

 

 

149

 

 

 

237

 

 

 

$

3,881

 

 

$

5,034