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13. Deposits and other assets (Tables) | 3 Months Ended
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Mar. 31, 2018
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract] |
Schedule of deposits and other assets |
|  | March 31, 2018 |  |  | December 30, 2017 |
Deposits |  |  | 408 |  |  |  | 411 |
Other |  |  | 100 |  |  |  | 107 |
|  | $ | 508 |  |  | $ | 518 |

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- Definition Tabular disclosure of the carrying amounts of other assets. This disclosure includes other current assets and other noncurrent assets. + References No definition available. + Details
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