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Allowance for Doubtful Accounts (Tables)
 9 Months Ended
Oct. 03, 2015
Allowance for Doubtful Accounts [Abstract]  
Allowance for doubtful accounts
Allowance for doubtful accounts on accounts receivable consists of the following (in thousands):
 
October 3, 2015
 
January 3, 2015
Allowance for doubtful accounts, current
$
3,474

 
$
3,542

Allowance for doubtful accounts, non-current
4,233

 
4,549

 
$
7,707

 
$
8,091