Note 1 - Nature of Operations and Significant Accounting Policies (Details) (USD $)	12 Months Ended
	Aug. 27, 2014	Aug. 28, 2013	Aug. 29, 2012
Note 1 - Nature of Operations and Significant Accounting Policies (Details) [Line Items]
Correction Of Prior Years Cumulative Error (in Dollars)	$ 160,000
Number of Reportable Segments	3
Advertising Expense (in Dollars)	$ 4,600,000	$ 3,900,000	$ 2,400,000
Company Owned Restaurants [Member]
Note 1 - Nature of Operations and Significant Accounting Policies (Details) [Line Items]
Number of Restaurants	174	180	154
Number of Reportable Segments	1
Franchise [Member]
Note 1 - Nature of Operations and Significant Accounting Policies (Details) [Line Items]
Number of Restaurants	110	116	125
TEXAS
Note 1 - Nature of Operations and Significant Accounting Policies (Details) [Line Items]
Number of Restaurants	127