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Stock Based Compensation (Other Information Pertaining To Stock Option Activity) (Details) - USD ($) $ in Thousands | 12 Months Ended
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Jan. 01, 2016 | Jan. 02, 2015 | Dec. 27, 2013
Stock Based Compensation [Abstract] |  |  |
Total intrinsic value of stock options exercised | $ 660 | $ 36 | $ 163

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- Definition Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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