Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Per Share data	Sep. 03, 2011	May 28, 2011
Accounts receivable, allowance	$ 605	$ 438
Preferred stock, par value	$ 1	$ 1
Preferred stock, shares issued	0	0
Common stock in treasury	21	112
Common Stock [Member]
Common stock, par value	$ 0.05	$ 0.05
Common stock, shares issued	14,270	14,921
Class B Common Stock [Member]
Common stock, par value	$ 0.05	$ 0.05
Common stock, shares issued	2,952	2,952