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Commitments And Contingent Liabilities (Tables)
12 Months Ended
Dec. 31, 2011
Commitments And Contingent Liabilities [Abstract]  
Aggregate Minimum Lease Commitments

2012

   $ 2,675   

2013

     1,744   

2014

     1,117   

2015

     63   
  

 

 

 
   $ 5,599