Fair Value Measurement, Financial Instruments And Risk Management (Narrative) (Details) (USD $)	3 Months Ended
	Mar. 30, 2014	Mar. 31, 2013	Dec. 29, 2013
Fair Value Disclosures [Line Items]
Restructuring Reserve	$ 7,651,000		$ 8,175,000
Restructuring related asset impairment	172,000	731,000
PROPERTY, PLANT, AND EQUIPMENT, net	74,463,000		75,067,000	[1]
Total assets	4,000		0
Total liabilities	25,000		18,000
Foreign currency forward exchange contracts
Fair Value Disclosures [Line Items]
Notional amount of derivatives not designated as hedging instruments	8,100,000
Total assets	4,000		0
Total liabilities	25,000		18,000
Fair Value, Measurements, Nonrecurring [Member]
Fair Value Disclosures [Line Items]
Property, Plant, and Equipment, Fair Value Disclosure	0
Lease termination liabilities [Member] | Fair Value, Measurements, Nonrecurring [Member]
Fair Value Disclosures [Line Items]
Other restructuring costs	12,000
Liabilities, Fair Value Adjustment	5,000
Restructuring Reserve	64,000
Impairment of certain long-lived assets [Member] | Fair Value, Measurements, Nonrecurring [Member]
Fair Value Disclosures [Line Items]
PROPERTY, PLANT, AND EQUIPMENT, net	$ 200,000

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