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Accounts receivable (Tables) | 12 Months Ended
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Dec. 30, 2017
Receivables [Abstract] |
Schedule Of Accounts Notes Loans And Financing Receivable [Table Text Block] |
|  |  |  | December 30, 2017 | December 31, 2016
|  |  |  | $ | $
Trade receivables | 125,408 | 122,916
Recall-related insurance recoveries (see note 6) | 2,656 | 37,400
Allowance for doubtful accounts | (2,912) | (2,947)
|  |  |  | 125,152 | 157,369
The change in the allowance for doubtful accounts provision for the years ended December 30, 2017 and December 31, 2016 is comprised as follows:
|  |  |  | December 30, 2017 | December 31, 2016
|  |  |  | $ | $
Balance, beginning of year | 2,947 | 2,492
Net additions to provision | 491 | 1,013
Reserves from acquired businesses | - | -
Accounts receivable written off, net of recoveries | (596) | (536)
Effects of foreign exchange rate differences | 70 | (22)
Balance, end of year | 2,912 | 2,947

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- Definition Tabular disclosure of the various types of trade accounts and notes receivable and for each the gross carrying value, allowance, and net carrying value as of the balance sheet date. Presentation is categorized by current, noncurrent and unclassified receivables. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.3,4) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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