Note 5 - Loans Payable and Long-term Debt (Details) - Long-term debt outstanding (USD $) In Thousands, unless otherwise specified	Aug. 31, 2013	Aug. 25, 2012
Debt Instrument [Line Items]
Long-term debt	$ 111,408	$ 106,986
Less – loans payable and current maturities of long-term debt	111,253	6,831
	155	100,155
Floating Rate Note [Member]
Debt Instrument [Line Items]
Long-term debt	100,000	100,000
Notes Payable Other [Member]
Debt Instrument [Line Items]
Long-term debt	$ 11,408	$ 6,986