Accounts receivable (Tables)

12 Months Ended

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