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Description of Business and Summary of Significant Accounting Policies (Details 1) - USD ($) $ in Thousands | 7 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2015 | Dec. 28, 2017 | Dec. 29, 2016 | May 28, 2015
Summary of Significant Accounting Policies [Line Items] |  |  |  |
Balance at beginning of period | $ 43,720 | $ 43,735 | $ 44,220 | $ 43,858
Acquisition | 581 | 0 | 0 | 0
Sale | 0 | (105) | 0 | 0
Other | 0 | 0 | (347) | 0
Deferred tax adjustment | (81) | (138) | (138) | (138)
Balance at end of period | $ 44,220 | $ 43,492 | $ 43,735 | $ 43,720

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