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1. Nature of Business and Basis of Presentation (Details Narrative) - W | 3 Months Ended
--- | ---
Mar. 31, 2018 | Apr. 01, 2017
Number of weeks reflected in operating results | 52 | 52
ARCA Advanced Processing, LLC [Member] |  |
Interest in a joint venture (as a percent) | 50.00% |

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- Definition The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66011266&loc=d3e33918-111571 + Details
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