Summary of Significant Accounting Policies Advertising Expense (Details) (USD $)	12 Months Ended
Jan. 03, 2015	Dec. 28, 2013	Dec. 29, 2012
Accounting Policies [Abstract]
Marketing and Advertising Expense	$ 16,000,000us-gaap_MarketingAndAdvertisingExpense	$ 14,700,000us-gaap_MarketingAndAdvertisingExpense	$ 15,900,000us-gaap_MarketingAndAdvertisingExpense
Marketing and Advertising Expense moved to COS	$ 10,631,000	$ 9,800,000	$ 9,500,000

The total expense recognized in the period for promotion, public relations, and brand or product advertising.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.4)

-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

Name:	us-gaap_MarketingAndAdvertisingExpense
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration