Receivables and Allowances for Doubtful Accounts (Details Textual)	Sep. 28, 2013 Customer	Dec. 29, 2012 Customer
Accounts Receivable and Allowances for Doubtful Accounts (Textual) [Abstract]
Percentage of Company's Receivables Net and Installment Contract Receivables Net Attributable to Single Customer	13.00%	10.00%
Number of customers with receivables balance greater than ten percent of total balance		0
Percentage of Company's total receivables, net attributable to the ten customers with largest balance	53.00%	47.00%
Number of customers with largest balance of receivables	10	10