Goodwill And Other Intangible Assets (Schedule Of Other Intangibles) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 29, 2012	Dec. 31, 2011
Finite and Indefinite-lived Intangible Assets by Major Class [Line Items]
GROSS CARRYING AMOUNT, Amortized	$ 16,280	$ 16,015
ACCUMULATED AMORTIZATION, Amortized	14,467	13,913
OTHER INTANGIBLES, NET, Amortized	1,813	2,102
OTHER INTANGIBLES, NET	8,713	9,002
Trademarks [Member]
Finite and Indefinite-lived Intangible Assets by Major Class [Line Items]
GROSS CARRYING AMOUNT, Amortized	9,522	9,374
ACCUMULATED AMORTIZATION, Amortized	9,132	8,990
OTHER INTANGIBLES, NET, Amortized	390	384
Patents [Member]
Finite and Indefinite-lived Intangible Assets by Major Class [Line Items]
GROSS CARRYING AMOUNT, Amortized	3,588	3,471
ACCUMULATED AMORTIZATION, Amortized	3,297	3,225
OTHER INTANGIBLES, NET, Amortized	291	246
Customer Relationships [Member]
Finite and Indefinite-lived Intangible Assets by Major Class [Line Items]
GROSS CARRYING AMOUNT, Amortized	3,170	3,170
ACCUMULATED AMORTIZATION, Amortized	2,038	1,698
OTHER INTANGIBLES, NET, Amortized	1,132	1,472
Trade Names [Member]
Finite and Indefinite-lived Intangible Assets by Major Class [Line Items]
OTHER INTANGIBLES, NET, Not Amortized	$ 6,900	$ 6,900