Acquisitions (Details Textual) (USD $) In Thousands, unless otherwise specified	3 Months Ended	6 Months Ended		3 Months Ended	6 Months Ended		3 Months Ended	6 Months Ended
	Jun. 29, 2012 Praml International Ltd [Member]	Jun. 29, 2012 Praml International Ltd [Member]	Apr. 27, 2012 Praml International Ltd [Member]	Dec. 30, 2011 Provvista Speciality Foods Inc [Member]	Jun. 29, 2012 Provvista Speciality Foods Inc [Member]	Nov. 07, 2011 Provvista Speciality Foods Inc [Member]	Jun. 24, 2011 Harry Wils & Co. [Member]	Jun. 29, 2012 Harry Wils & Co. [Member]
Acquisition (Textual) [Abstract]
Company acquired outstanding common stock of praml international ltd.			100.00%
Cash payments for acquisition			$ 19,500			$ 8,800
Legal fees	$ 23			$ 20			$ 55
Goodwill amortization period		15 years			15 years			15 years
Trademarks amortized					2 years
Customer relationships amortized					13 years			10 years 6 months