Summary Of Refranchisings, Franchisee Development And Acquisitions (Number Of Restaurants Sold And Developed By Franchisees And Related Gains And Fees Recognized) (Details) (USD $) In Thousands, unless otherwise specified	4 Months Ended
	Jan. 19, 2014 restaurant	Jan. 20, 2013 restaurant
Summary Of Refranchisings, Franchisee Development And Acquisitions [Abstract]
New restaurants opened by franchisees	13	20
Initial franchise fees	$ 399	$ 646
Proceeds	(468)	(833)
Net assets sold (primarily property and equipment)	0	(85)
Goodwill related to the sale of company-operated restaurants	(9)	0
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal	$ (461)	$ (748)