Condensed Consolidated Balance Sheets (Parenthetical) (USD $)	Sep. 24, 2011	Dec. 25, 2010
Stockholders' equity:
Preferred stock, par value	$ 1	$ 1
Preferred stock, shares authorized	1,000,000	1,000,000
Preferred stock, shares issued
Common stock, par value	$ 1	$ 1
Common stock, shares authorized	60,000,000	60,000,000
Common stock, shares issued	24,161,000	23,989,000
Common stock, shares outstanding	24,161,000	23,989,000