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Leased Properties (Tables)
12 Months Ended
Dec. 31, 2011
Leased Properties [Abstract]  
Future minimum payments of leases
         

2012

  $ 134,842  

2013

    108,000  

2014

    81,028  

2015

    53,432  

2016

    36,784  

Thereafter

    139,220  
   

 

 

 

Total minimum lease payments

  $ 553,306