CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $)	Jun. 28, 2014	Dec. 28, 2013
Statement Of Financial Position [Abstract]
Preferred stock, par value	$ 1	$ 1	[1]
Preferred stock, shares authorized	1,000,000	1,000,000	[1]
Preferred stock, shares issued	0	0	[1]
Common stock, par value	$ 1	$ 1	[1]
Common stock, shares authorized	60,000,000	60,000,000	[1]
Common stock, shares issued	25,398,000	25,080,000	[1]
Common stock, shares outstanding	25,398,000	25,080,000	[1]

[1] Derived from December 28, 2013 audited financial statements