Acquisitions and Acquisition-Related Contingent Consideration (Details 2) (USD $)	12 Months Ended		12 Months Ended
	Dec. 28, 2013	Dec. 29, 2012	Dec. 31, 2011 Two Thousand Eleven Acquisition [Member]	Dec. 28, 2013 Two Thousand Eleven Acquisition [Member]
Business Acquisition, Contingent Consideration [Line Items]
Maximum payments for contingent consideration arrangement			$ 5,000,000
Time of certain financial measures subsequent to consummation of the acquisition related contingent consideration			3 years
Beginning date of acquisition related contingent consideration measurement period			subsequent to October 1, 2011
Acquisition related contingent consideration at initial fair value			3,500,000
Acquisition-related contingent consideration	4,091,000	4,218,000		4,100,000
Maximum potential cash payment to be paid	14,300,000
Period over which consideration may be paid	28 months
Maximum potential expense in future periods	$ 9,000,000