Note 1 - Nature of Operations and Significant Accounting Policies (Details)	12 Months Ended
	Aug. 26, 2015 USD ($)	Aug. 27, 2014 USD ($)	Aug. 28, 2013 USD ($)
Note 1 - Nature of Operations and Significant Accounting Policies (Details) [Line Items]
Cost of Culinary Contract Services	$ 14,786,000	$ 16,847,000	$ 15,604,000
Franchise Costs	$ 1,668,000	1,733,000	1,629,000
Number of Reportable Segments	3
Advertising Expense	$ 4,400,000	$ 4,700,000	$ 3,900,000
Texas [Member]
Note 1 - Nature of Operations and Significant Accounting Policies (Details) [Line Items]
Number of Restaurants	128
Company Owned Restaurants [Member]
Note 1 - Nature of Operations and Significant Accounting Policies (Details) [Line Items]
Number of Restaurants	177	174	180
Number of Reportable Segments	1
Franchise [Member]
Note 1 - Nature of Operations and Significant Accounting Policies (Details) [Line Items]
Number of Restaurants	106	110	116
Selling, General and Administrative Expenses [Member]
Note 1 - Nature of Operations and Significant Accounting Policies (Details) [Line Items]
Cost of Culinary Contract Services		$ 618	$ 707
Franchise Costs		1,680	1,635
Advertising Expense	$ 3,200,000	3,900,000	3,100,000
Other Operating Income (Expense) [Member]
Note 1 - Nature of Operations and Significant Accounting Policies (Details) [Line Items]
Advertising Expense	$ 1,200,000	$ 800,000	$ 800,000