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Lease Commitments (Tables)
12 Months Ended
Dec. 31, 2012
Lease Commitments [Abstract]  
Minimum rental commitments under noncancelable leases
         
    (in thousands)  
    Operating
Leases
 

2013

  $ 209  

2014

    140  

2015

    136  

2016

    106  

2017

    6  
   

 

 

 

Total minimum payments

  $ 597