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Accrued Expenses
 12 Months Ended
Dec. 31, 2016
Payables and Accruals [Abstract]  
Accrued Expenses
4.         Accrued Expenses

Accrued expenses consisted of the following:

 

     December 31,
2016		      December 31,
2015		  
     (In thousands)  

Employee compensation and benefits

     $ 2,703       $ 1,281  

In-process research and development obligation

      -          600  

Research and development and professional expenses

      3,197        907  
  

 

 

  

Accrued expenses

     $ 5,900       $ 2,788  
  

 

 

  

In July 2014, the Company entered into agreements with Caribou Biosciences, Inc. (“Caribou”), under which the Company received a license for certain patents and limited research and development services from Caribou. The in-process research and development obligation represented the portion of the Company’s obligation under these agreements that is attributable to the license.