Consolidated Condensed Balance Sheets Parentheticals (USD $) In Thousands, except Share data	Jul. 02, 2011	Dec. 25, 2010
CURRENT ASSETS
Allowance for doubtful accounts	$ 577	$ 466
STOCKHOLDERS' EQUITY
Common stock, par value	$ 3	$ 3
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	$ 3
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