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Leasing Activities - Additional Information (Detail) (USD $)
1 Months Ended 12 Months Ended
May 31, 2011
Dec. 31, 2012
Restaurants
Dec. 31, 2011
Dec. 31, 2010
Leases Disclosure [Line Items]        
Number of properties leased   8    
Number of lease years   35 years    
Percentage of gross sales of the restaurants   12.00%    
Leases termination period   2022 to 2024    
Minimum rentals due to partnership $ 20,774 $ 3,500 $ 3,500  
Combined unaudited sales   8,213,914 8,207,338 8,638,283
Combined unaudited net losses   $ 94,586 $ 55,685 $ 65,785