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Summary of Significant Accounting Policies Inventory valuation (Details) - USD ($) $ in Thousands | 12 Months Ended
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Jan. 02, 2016 | Dec. 27, 2014 | Dec. 28, 2013
Valuation and Qualifying Accounts Disclosure [Line Items] |  |  |  |
Valuation Allowances and Reserves, Deductions |  |  | $ 2,090 | $ 601
Inventory Valuation Reserve [Member] |  |  |  |
Valuation and Qualifying Accounts Disclosure [Line Items] |  |  |  |
Valuation Allowances and Reserves, Deductions | [1] | $ 1,753 | $ 1,074 | $ 2,899
[1] | Deductions related to inventory reserve accounts represent amounts written off against the reserve.

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- Definition Total of the deductions in a given period to allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs, representing receivables written off as uncollectible and portions of the reserves utilized, respectively. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 09 -Article 12 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Details
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