Restructuring Reserve and Plant Closures (Changes in Restructuring Accruals) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 29, 2014
Restructuring Reserve [Roll Forward]
Balance as of December 29, 2012	$ 55
Restructuring charges	(28)
Cash payments	14
Balance as of June 29, 2013	41
Severance [Member]
Restructuring Reserve [Roll Forward]
Balance as of December 29, 2012	49
Restructuring charges	0
Cash payments	(14)
Balance as of June 29, 2013	35
Facility Exit Costs & Other [Member]
Restructuring Reserve [Roll Forward]
Balance as of December 29, 2012	6
Restructuring charges	(28)
Cash payments	28
Balance as of June 29, 2013	$ 6