Consolidated Condensed Balance Sheets (Unaudited) (Parentheticals) (USD $)	Sep. 23, 2012	Dec. 25, 2011
Preferred stock, par value (in Dollars per share)	$ 5	$ 5
Preferred stock, shares authorized (in Shares)	5,000,000	5,000,000
Preferred stock, shares outstanding (in Shares)	0	0
Common Class A [Member]
Common stock, shares authorized (in Shares)	75,000,000	75,000,000
Common stock, shares issued (in Shares)	22,723,555	22,548,741
Common stock, par value (in Dollars per share)	$ 5	$ 5
Common Class B [Member]
Common stock, shares authorized (in Shares)	600,000	600,000
Common stock, shares issued (in Shares)	548,564	548,564
Common stock, par value (in Dollars per share)	$ 5	$ 5