Goodwill and Intangible Assets Finite-Lived Intangible Assets (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 28, 2014	Jun. 29, 2013	Jun. 28, 2014	Jun. 29, 2013	Dec. 28, 2013
Finite-Lived Intangible Assets [Line Items]
Amortization of Intangible Assets	$ 200,000	$ 300,000	$ 400,000	$ 400,000
Finite-Lived Intangible Assets	7,745,000		7,745,000		7,745,000
Finite-Lived Intangible Assets, Accumulated Amortization	1,701,000		1,701,000		1,281,000
Developed technologies [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets	5,231,000		5,231,000		5,231,000
Finite-Lived Intangible Assets, Accumulated Amortization	1,097,000		1,097,000		850,000
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets	2,413,000		2,413,000		2,413,000
Finite-Lived Intangible Assets, Accumulated Amortization	503,000		503,000		330,000
TradenameAndTrademark [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets	101,000		101,000		101,000
Finite-Lived Intangible Assets, Accumulated Amortization	$ 101,000		$ 101,000		$ 101,000