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Leases (Details Textual) (USD $)
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2012
Tenant
Property
Jun. 30, 2011
Jun. 30, 2012
Tenant
Property
Jun. 30, 2011
Dec. 31, 2011
Leases (Textual) [Abstract]          
Operating lease revenues collected     $ 508,248    
Operating percentage rents 26,000 19,000 26,000 50,000 431,000
Rents and other receivables 25,500   25,500   430,048
Rents and other receivables for unbilled percentage rents $ 26,000   $ 26,000   $ 404,000
Number of Properties leased 13   13    
Number of tenants operating base rents 3   3    
Wendgusta [Member]
         
Leases (Textual) [Abstract]          
Number of Properties leased 6   6    
Percentage of base rents from tenants     54.00%    
Wendcharles I [Member]
         
Leases (Textual) [Abstract]          
Number of Properties leased 2   2    
Percentage of base rents from tenants     15.00%    
Wendcharles II [Member]
         
Leases (Textual) [Abstract]          
Number of Properties leased 1   1    
Percentage of base rents from tenants     8.00%    
Maximum [Member]
         
Leases (Textual) [Abstract]          
Original lease terms of properties     20 years    
Minimum [Member]
         
Leases (Textual) [Abstract]          
Original lease terms of properties     5 years