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Commitments and Contingencies (Tables)
12 Months Ended
Dec. 31, 2013
Commitments And Contingencies Disclosure [Abstract]  
Future Minimum Rental Payments

As of December 31, 2013, future minimum rental payments are as follows:

 

Years Ending December 31,

      
     (In thousands)  

2014

   $ 117   

2015

     136   

2016

     148   

2017

     74   
  

 

 

 

Total

   $ 475