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Segment, Geographic, Product and Significant Customer Information (Details 1) (USD $) In Thousands, unless otherwise specified | Dec. 28, 2013 | Dec. 29, 2012
--- | --- | ---
Long-lived tangible assets: |  |
Total long-lived tangible assets | $ 47,439 | $ 43,213
United States [Member] |  |
Long-lived tangible assets: |  |
Long-lived tangible assets | 44,775 | 40,600
Japan [Member] |  |
Long-lived tangible assets: |  |
Long-lived tangible assets | 125 | 148
South Korea [Member] |  |
Long-lived tangible assets: |  |
Long-lived tangible assets | 445 | 520
All other [Member] |  |
Long-lived tangible assets: |  |
Long-lived tangible assets | $ 2,094 | $ 1,945

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- Definition Long-lived assets other than financial instruments, long-term customer relationships of a financial institution, mortgage and other servicing rights, deferred policy acquisition costs, and deferred tax assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 41 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6534315&loc=d3e9038-108599 + Details
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- Definition Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.13) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 13 -Subparagraph a -Article 5 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 8 -Article 7 + Details
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