Consolidated Condensed Statements of Comprehensive Income (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 29, 2014	Mar. 30, 2013
Statement Of Income And Comprehensive Income [Abstract]
Net Income	$ 7,507	$ 8,564
Other Comprehensive Loss:
Foreign Currency Translation Adjustments	(386)	(197)
Mark to Market Adjustments for Derivatives - Net of Tax	20	15
Retirement Liability Adjustment - Net of Tax	102	106
Other Comprehensive Loss	(264)	(76)
Comprehensive Income	$ 7,243	$ 8,488