Annual report pursuant to Section 13 and 15(d)

Intangible Assets (Schedule Of Finite And Indefinite Lived Intangible Assets) (Details)

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Intangible Assets (Schedule Of Finite And Indefinite Lived Intangible Assets) (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 29, 2018
Dec. 30, 2017
Schedule Of Finite and Indefinite Intangible Assets [Line Items]    
Amortized intangible assets, Net carrying amount $ 5,501  
Total, Gross carrying amount 38,674 $ 40,908
Total, Net carrying amount 31,811 35,154
Trade Name And Trademarks [Member]    
Schedule Of Finite and Indefinite Intangible Assets [Line Items]    
Amortized intangible assets, Gross carrying amount 3,858 4,080
Amortized intangible assets, Accumulated amortization (3,226) (3,010)
Amortized intangible assets, Net carrying amount $ 632 $ 1,070
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 $ 8,506 $ 8,998
Amortized intangible assets, Accumulated amortization (3,637) (2,744)
Amortized intangible assets, Net carrying amount $ 4,869 $ 6,254
Weighted-average amortization period (years) 8 years 8 years
Direct Sales License [Member]    
Schedule Of Finite and Indefinite Intangible Assets [Line Items]    
Indefinite-lived intangible assets, Gross carrying amount $ 26,310 $ 27,830