Goodwill And Other Intangible Assets (Schedule Of Other Intangibles) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 28, 2013	Dec. 29, 2012
Finite and Indefinite-lived Intangible Assets by Major Class [Line Items]
GROSS CARRYING AMOUNT, Amortized	$ 3,743	$ 16,354
ACCUMULATED AMORTIZATION, Amortized	2,815	14,648
OTHER INTANGIBLES, NET, Amortized	928	1,706
OTHER INTANGIBLES, NET	7,828	8,606
Trademarks [Member]
Finite and Indefinite-lived Intangible Assets by Major Class [Line Items]
GROSS CARRYING AMOUNT, Amortized	250	9,542
ACCUMULATED AMORTIZATION, Amortized	160	9,163
OTHER INTANGIBLES, NET, Amortized	90	379
Patents [Member]
Finite and Indefinite-lived Intangible Assets by Major Class [Line Items]
GROSS CARRYING AMOUNT, Amortized	323	3,642
ACCUMULATED AMORTIZATION, Amortized	165	3,334
OTHER INTANGIBLES, NET, Amortized	158	308
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	2,490	2,151
OTHER INTANGIBLES, NET, Amortized	680	1,019
Trade Names [Member]
Finite and Indefinite-lived Intangible Assets by Major Class [Line Items]
OTHER INTANGIBLES, NET, Not Amortized	$ 6,900	$ 6,900