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Property And Equipment (Tables)
12 Months Ended
Dec. 31, 2011
Property And Equipment [Abstract]  
Schedule Of Property And Equipment

December 31,

   2011     2010  

Land

   $ 1,388      $ 1,388   

Buildings and improvements

     42,408        34,521   

Machinery, vehicles and equipment

     52,636        48,821   

Furniture and fixtures

     15,049        13,765   
  

 

 

   

 

 

 
     111,481        98,495   

Less: accumulated depreciation and amortization

     (72,026     (67,274
  

 

 

   

 

 

 
   $ 39,455      $ 31,221