Segment Information (Details 4) (USD $) In Thousands, unless otherwise specified	3 Months Ended								6 Months Ended	9 Months Ended	12 Months Ended
	Dec. 31, 2013	Sep. 29, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Jun. 30, 2013	Sep. 29, 2013	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Geographical Information
Net sales	$ 69,792	$ 73,030	$ 64,212	$ 63,849	$ 67,371	$ 56,555	$ 45,837	$ 43,853	$ 128,061	$ 201,165	$ 270,883	$ 213,616	$ 208,816
Long-lived assets	30,733				22,134						30,733	22,134
United States
Geographical Information
Net sales											158,311	111,888	89,544
Long-lived assets	25,745				17,272						25,745	17,272
Asia/Pacific
Geographical Information
Net sales											64,959	45,866	26,762
Canada
Geographical Information
Net sales											28,130	30,244	26,064
Long-lived assets	4,988				4,862						4,988	4,862
Europe
Geographical Information
Net sales											9,255	16,501	34,908
Middle East/Asia
Geographical Information
Net sales											3,065	3,675	26,188
Latin America/Caribbean
Geographical Information
Net sales											$ 7,163	$ 5,452	$ 5,350