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Commitments and Contingencies (Tables)
12 Months Ended
Dec. 31, 2016
Commitments and Contingencies Disclosure [Abstract]  
Future Minimum Lease Payments Under Lease

The future minimum lease payments required under the lease are as follows:

 

     Amount  
     (in thousands)  

2017

     215  

2018

     221  

2019

     112  
  

 

 

 

Total lease obligations

   $ 548