v2.4.0.8
Accounts receivable
 12 Months Ended
Dec. 28, 2013
Receivables [Abstract]  
Loans Notes Trade And Other Receivables Disclosure [Text Block]

5. Accounts Receivable

    December 28, 2013December 29, 2012
    $$
Trade receivables 111,593 115,737
Allowance for doubtful accounts (1,676) (2,423)
     109,917 113,314

The change in the allowance for doubtful accounts provision for the years ended December 28, 2013 and December 29, 2012 is comprised as follows:

    December 28, 2013December 29, 2012
    $$
Balance, beginning of year 2,423 1,596
Net additions to provision 1,247 1,639
Accounts receivable written off, net of recoveries (1,996) (844)
Effects of foreign exchange rate differences 2 32
Balance, end of year 1,676 2,423