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Accrued Expenses (Tables)
12 Months Ended
Dec. 31, 2016
Payables and Accruals [Abstract]  
Schedule of Accrued Expenses

Accrued expenses consisted of the following:

 

     As of December 31,  
     2016      2015  
     (in thousands)  

Accrued compensation

   $ 1,402      $ 758  

Accrued clinical expenses

     187        138  

Accrued other

     508        548  
  

 

 

    

 

 

 

Total accrued expenses

   $ 2,097      $ 1,444