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Significant Accounting Policies (Narrative) (Details) | 6 Months Ended
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Jun. 27, 2020
Accounting Policies [Abstract] |
Operating Cycle | 371 days
Operating cycle of company | The fiscal year of the Company consists of a 52- or 53-week period ending on the Saturday closest to December 31. Fiscal year 2020 is a 53-week period ending on January 2, 2021, with quarterly periods ending on March 28, June 27 and September 26, 2020. Fiscal year 2019 was a 52-week period ending on December 28, 2019, with quarterly periods ending on March 30, June 29 and September 28, 2019.

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- Definition Entity's operating cycle if it is other than 12 months. + References No definition available. + Details
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- Definition Operating cycle, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 926 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=120154696&loc=d3e54406-107959 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 926 -SubTopic 20 -Section 50 -Paragraph 4B -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=120154696&loc=SL120155248-107959 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 920 -SubTopic 350 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=120155617&loc=SL120155636-234783 + Details
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