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Property plant and equipment (Tables) | 12 Months Ended
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Dec. 30, 2017
Property, Plant and Equipment, Net, by Type [Abstract] |
Property Plant And Equipment [Text Block] |
|  |  |  | December 30, 2017
|  |  |  | Cost | Accumulated depreciation | Net book value
|  |  |  | $ | $ | $
Land | 7,124 | - | 7,124
Buildings | 70,383 | 21,784 | 48,599
Machinery and equipment | 178,760 | 84,525 | 94,235
Enterprise software | 14,829 | 6,651 | 8,178
Office furniture and equipment | 12,063 | 7,834 | 4,229
Vehicles | 3,609 | 2,350 | 1,259
|  |  |  | 286,768 | 123,144 | 163,624
|  |  |  | December 31, 2016
|  |  |  | Cost | Accumulated depreciation | Net book value
|  |  |  | $ | $ | $
Land | 7,165 | - | 7,165
Buildings | 68,014 | 19,432 | 48,582
Machinery and equipment | 168,120 | 73,914 | 94,206
Enterprise software | 10,845 | 4,179 | 6,666
Office furniture and equipment | 10,191 | 5,930 | 4,261
Vehicles | 3,515 | 2,156 | 1,359
|  |  |  | 267,850 | 105,611 | 162,239

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- Definition Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(13)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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