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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Advertising (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 28, 2016 | Dec. 30, 2015 | Dec. 31, 2014
Accounting Policies [Abstract] |  |  |
Advertising and promotions | $ 147 | $ 149 | $ 87

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- Definition The total expense recognized in the period for promotion, public relations, and brand or product advertising. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.4) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
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