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11. Intangible assets (Tables) | 12 Months Ended
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Dec. 29, 2018
Goodwill and Intangible Assets Disclosure [Abstract] |
Intangible assets | Intangible assets of continuing operations as of December 29, 2018 and December 30, 2017 consist of the following:
|  | December 29, 2018 |  |  | December 30, 2017 |
Intangible assets GeoTraq, net |  | $ | 20,969 |  |  | $ | 24,699 |
Patent |  |  | 19 |  |  |  | 19 |
|  | $ | 20,988 |  |  | $ | 24,718 |

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