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Fair Value (Tables)
9 Months Ended
Sep. 30, 2012
Fair Value [Abstract]  
Fair value and carrying value of long-term debt
At September 30, 2012 and December 31, 2011, the aggregate fair value and the carrying value of the Company's fixed rate long-term debt were as follows:

   
September 30, 2012
  
December 31, 2011
 
              
   
Fair Value
  
Carrying Value
  
Fair Value
  
Carrying Value
 
              
Fixed rate long-term debt
 $24,688,000  $24,858,000  $24,211,000  $24,341,000