Organization and Summary of Significant Accounting Policies - Additional Information (Detail)	3 Months Ended												12 Months Ended
	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2010	Dec. 31, 2013 Restaurants CommercialBank	Dec. 31, 2012	Dec. 31, 2011
Organization And Significant Accounting Policies [Line Items]
Date of formation													Nov. 30, 1982
Mexican-American restaurants													6
General partner interest in partnership													1.00%
Percentage of net income allocated to general partner													1.00%
Weighted average number of units outstanding to general partner	8,751	8,751	8,751	8,751	8,751	8,751	8,751	8,751	8,751	8,751	8,751	8,751	8,751	8,751	8,751
Rental revenue percentage													12.00%
Restaurants leased													6
Commercial bank													1
Land improvements [Member]
Organization And Significant Accounting Policies [Line Items]
Estimated useful lives of property and equipment													20 years
Buildings and improvements [Member]
Organization And Significant Accounting Policies [Line Items]
Estimated useful lives of property and equipment													35 years
Machinery and equipment [Member]
Organization And Significant Accounting Policies [Line Items]
Estimated useful lives of property and equipment													10 years