Major Customers and Suppliers (Details)	12 Months Ended
	Jan. 03, 2015 customers	Dec. 28, 2013 customers
Customer Concentration Risk [Member] | Sales Revenue, Services, Net [Member]
Concentration Risk [Line Items]
Number of customers representing more than 10% of total receivables	1
Percentage of customers representing 10% of total trade receivables	14.00%
Customer Concentration Risk [Member] | Trade Receivable
Concentration Risk [Line Items]
Number of customers representing more than 10% of total receivables	3	2
Percentage of customers representing 10% of total trade receivables	46.00%	42.00%
Supplier Concentration Risk [Member]
Concentration Risk [Line Items]
Number of suppliers concentration risk	3