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Intangible Assets (Schedule Of Finite And Indefinite Lived Intangible Assets) (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 28, 2019 | Dec. 29, 2018
Schedule Of Finite and Indefinite Intangible Assets [Line Items] |  |
Amortized intangible assets, Net carrying amount | $ 3,982 |
Total, Gross carrying amount | 38,009 | $ 38,674
Total, Net carrying amount | 29,840 | 31,811
Trade Name And Trademarks [Member] |  |
Schedule Of Finite and Indefinite Intangible Assets [Line Items] |  |
Amortized intangible assets, Gross carrying amount | 3,791 | 3,858
Amortized intangible assets, Accumulated amortization | (3,548) | (3,226)
Amortized intangible assets, Net carrying amount | $ 243 | $ 632
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 | $ 8,360 | $ 8,506
Amortized intangible assets, Accumulated amortization | (4,621) | (3,637)
Amortized intangible assets, Net carrying amount | $ 3,739 | $ 4,869
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 | $ 25,858 | $ 26,310

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- Definition Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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- Definition Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 928 -SubTopic 340 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6473545&loc=d3e61844-108004 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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