Intangible Assets (Schedule Of Finite And Indefinite Lived Intangible Assets) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Jan. 02, 2016
Schedule Of Finite and Indefinite Intangible Assets [Line Items]
Amortized intangible assets, Net carrying amount	$ 8,292
Total, Gross carrying amount	38,301	$ 40,963
Total, Net carrying amount	34,349	38,269
Trade Name And Trademarks [Member]
Schedule Of Finite and Indefinite Intangible Assets [Line Items]
Amortized intangible assets, Gross carrying amount	3,820	4,086
Accumulated amortization	(2,440)	(2,205)
Amortized intangible assets, Net carrying amount	$ 1,380	$ 1,881
Weighted-average amortization period (years)	10 years	10 years
Product Formulas [Member]
Schedule Of Finite and Indefinite Intangible Assets [Line Items]
Amortized intangible assets, Gross carrying amount	$ 8,424	$ 9,010
Accumulated amortization	(1,512)	(489)
Amortized intangible assets, Net carrying amount	$ 6,912	$ 8,521
Weighted-average amortization period (years)	8 years	8 years
Direct Sales License [Member]
Schedule Of Finite and Indefinite Intangible Assets [Line Items]
Unamortized intangible assets	$ 26,057	$ 27,867