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Commitments and Contingencies (Tables)
 12 Months Ended
Dec. 31, 2013
Commitments and Contingencies  
Schedule of future minimum annual lease payments, and sublease rental income

  Future minimum annual lease payments for the Company's remaining lease commitments, and sublease rental income as of December 31, 2013, are disclosed within the table below. These leases expire at various times through 2015.

(In thousands of dollars)
  Future
Minimum
Lease
Payments		   Sublease
Rental
Income		   Net Lease
Payments		  

2014

   $ 1,431   $ 974   $ 457  

2015

     712     530     182  
               
​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

Total

   $ 2,143   $ 1,504   $ 639  
               
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