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7. Receivables (Details Narrative) - Two customers | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2017 | Oct. 01, 2016 | Sep. 30, 2017 | Oct. 01, 2016
Sales Revenue, Net [Member] |  |  |  |
Concentration percentage | 10.00% | 10.00% | 10.00% | 10.00%
Trade Receivables [Member] |  |  |  |
Concentration percentage |  |  | 27.00% | 27.00%

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