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Commitments and Contingencies (Tables)
 12 Months Ended
Dec. 31, 2013
Commitments and Contingencies  
Summary of the future minimum lease payments

Future minimum lease payments as of December 31, 2013 are as follows (in thousands):

Year
   
  

2014

   $ 323  

2015

     315  

2016

     292  

2017

     173  

2018

     —  
       
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   $ 1,103  
       
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