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Borrowings (Tables)
 12 Months Ended
Dec. 31, 2013
Term Loan  
Summary of term debt

The following is a summary of term debt at December 31 (dollars in thousands):

 
   2013   2012  

Term loan

   $ 9,020   $ 15,388  

Obligations under capital leases

     21,312     3,884  
           
​ ​ ​ ​ ​ ​ ​ ​

Total

   $ 30,332   $ 19,272  
           
​ ​ ​ ​ ​ ​ ​ ​
​ ​ ​ ​ ​ ​ ​ ​
           
Summary of remaining scheduled principal repayments

The remaining scheduled principal repayments are as follows (dollars in thousands):

Year
  Aggregate
Amount		  

2014

   $ 6,367  

2015

     2,653  
       
​ ​ ​ ​ ​

 

   $ 9,020  
       
​ ​ ​ ​ ​
​ ​ ​ ​ ​
       
Bank of America
  
Term Loan  
Summary of remaining scheduled principal repayments for capital lease

The reductions to the remaining principal balance applying the interest method to the estimated minimum lease payments are as follows (dollars in thousands):

Year
  Aggregate
Amount		  

2014

   $ 1,086  

2015

     893  

2016

     237  
       
​ ​ ​ ​ ​

 

   $ 2,216  
       
​ ​ ​ ​ ​
​ ​ ​ ​ ​
       
BMO Harris Equipment Finance Company
  
Term Loan  
Summary of remaining scheduled principal repayments for capital lease

The reductions to the remaining principal balance applying the interest method to the estimated minimum lease payments are as follows (dollars in thousands):

Year
  Aggregate
Amount		  

2014

   $ 5,098  

2015

     5,274  

2016

     5,455  

2017

     3,269  
       
​ ​ ​ ​ ​

 

   $ 19,096  
       
​ ​ ​ ​ ​
​ ​ ​ ​ ​