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Intangible Assets (Schedule Of Goodwill) (Details) - USD ($) | 12 Months Ended
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Dec. 29, 2018 | Dec. 30, 2017 | Dec. 31, 2016
Intangible Assets [Abstract] |  |  |
Gross goodwill, Balance at beginning of year | $ 17,417,000 | $ 16,715,000 |
Accumulated impairment losses, Balance at beginning of year |  |  |
Net goodwill as of beginning of year | 17,417,000 | 16,715,000 |
Goodwill acquired during the year |  |  |
Impairment loss | 0 | 0 | $ 0
Currency translation adjustments | (602,000) | 702,000 |
Gross goodwill, Balance as of end of year | 16,815,000 | 17,417,000 | 16,715,000
Accumulated impairment losses, Balance as of end of year |  |  |
Net goodwill, Balance as of end of year | $ 16,815,000 | $ 17,417,000 | $ 16,715,000

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- Definition Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=108376223&loc=d3e13816-109267 + Details
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