Consolidated Balance Sheets (Parentheticals) (USD $) In Thousands, except Share data, unless otherwise specified	Aug. 31, 2013	Aug. 25, 2012
Receivables reserves (in Dollars)	$ 4,894	$ 5,152
Preferred stock par value (in Dollars per share)	$ 1.00	$ 1.00
Preferred stock, shares authorized	2,000,000	2,000,000
Preferred Stock, shares issued	0	0
Preferred Stock, shares outstanding	0	0
Common Class A [Member]
Common stock par value (in Dollars per share)	$ 0.10	$ 0.10
Common stock, shares authorized	30,000,000	30,000,000
Common stock, shares issued	15,129,524	15,064,069
Common stock, shares outstanding	15,129,524	15,064,069
Common Class B [Member]
Common stock par value (in Dollars per share)	$ 0.10	$ 0.10
Common stock, shares authorized	20,000,000	20,000,000
Common stock, shares issued	4,873,277	4,885,277
Common stock, shares outstanding	4,873,277	4,885,277