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Operating Leases - Lessor (Details) (USD $)
Dec. 31, 2011
employees
Operating Leases, Future Minimum Payments Receivable [Abstract]  
2012 $ 348,317
2013 312,298
2014 276,791
2015 241,593
2016 208,830
Thereafter 1,079,349
Total $ 2,467,178
Customer Concentration Risk - Number 0
Concentration Risk, Percentage 5.00%