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Allowance for Doubtful Accounts (Tables)
 3 Months Ended
Mar. 26, 2016
Receivables [Abstract]  
Reconciliation of Allowance for Doubtful Accounts
A reconciliation of the changes in our allowance for doubtful accounts receivable for the three months ended March 26, 2016 and March 28, 2015, respectively, is as follows (in thousands):

 
 
March 26,
2016
 
March 28,
2015
Balance at beginning of period
$
284

 
$
266

Reductions
(34
)
 
(13
)
Balance at end of period
$
250

 
$
253