Acquisitions and Acquisition-Related Contingent Consideration (Details Textual 1) (USD $)	6 Months Ended		12 Months Ended
	Jun. 29, 2013	Dec. 29, 2012	Dec. 31, 2011 Two Thousand Eleven Acquisition [Member]	Jun. 29, 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 to 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	3,832,000	4,218,000		3,700,000
Maximum amount obligated to pay by Cadence	14,400,000
Period over which consideration may be paid	34 months
Portion of amount of contingent consideration potential expense in future periods	$ 9,000,000