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Commitments and Contingent Liabilities (Tables)
12 Months Ended
Dec. 31, 2011
Commitments and Contingent Liabilities [Abstract]  
Minimum future rental payments required under operating leases
         

2012

  $ 176,949  

2013

    174,566  

2014

    173,207  

2015

    170,359  

2016

    169,791  

2017 and thereafter

    3,826,677  
   

 

 

 
    $ 4,691,549