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Commitments (Tables)
12 Months Ended
Dec. 31, 2014
Commitments [Abstract]  
Future minimum lease payments under all operating leases
Future minimum lease payments under all operating leases at December 31, 2014 are as follows:
 
(in thousands)
 
Future Lease Payment
 
2015
 
$
869
 
2016
  
426
 
2017
  
252
 
2018
  
260
 
2019
  
239
 
 
 
$
2,046