Consolidated Balance Sheets (Unaudited) (Parenthetical) (USD $) In Thousands, except Share data	May 28, 2011	Aug. 28, 2010
Assets
Receivable reserves	$ 5,612	$ 4,102
Shareholders' equity:
Preferred stock, par value (in dollars per share)	$ 1.00	$ 1.00
Preferred stock, shares authorized (in shares)	2,000,000	2,000,000
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Class A
Shareholders' equity:
Common stock, par value (in dollars per shares)	$ 0.10	$ 0.10
Common stock, shares authorized (in shares)	30,000,000	30,000,000
Common stock, issued (in shares)	14,966,079	14,913,379
Common Stock, shares outstanding (in shares)	14,966,079	14,913,379
Class B
Shareholders' equity:
Common stock, par value (in dollars per shares)	$ 0.10	$ 0.10
Common stock, shares authorized (in shares)	20,000,000	20,000,000
Common stock, issued (in shares)	4,902,569	4,913,369
Common Stock, shares outstanding (in shares)	4,902,569	4,913,369