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Leases (Tables)
12 Months Ended
Dec. 31, 2013
Leases Tables  
Leases (Tables)

The future lease payments under non-cancelable operating leases as of December 31, 2013 are as follows (in thousands):

              Operating
              leases
Year ending December 31:              
     2014           $ 1,992 
     2015             1,910 
     2016             1,287 
     2017            
     2018            
          Total minimum lease payments           $ 5,189