Consolidated Condensed Balance Sheets Parentheticals (USD $) In Thousands, except Share data	Oct. 01, 2011	Dec. 25, 2010
CURRENT ASSETS
Allowance for doubtful accounts	$ 509	$ 466
STOCKHOLDERS' EQUITY
Common stock, par value	$ 3.00	$ 3.00
Common stock, shares authorized	80,000,000	80,000,000
Common stock, shares issued	15,998,937	15,922,480
Class B Common stock, par value	$ 3.00	$ 3.00
Class B Common stock, shares authorized	16,000,000	16,000,000
Class B Common stock, shares issued	882,644	867,761
Common stock in treasury, shares held	3,975,098	3,947,327