Goodwill and Intangible Assets Finite-Lived Intangible Assets (Details) (USD $) In Thousands, unless otherwise specified	Mar. 29, 2014	Dec. 28, 2013
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets	$ 7,745	$ 7,745
Finite-Lived Intangible Assets, Accumulated Amortization	1,491	1,281
Developed technologies [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets	5,231	5,231
Finite-Lived Intangible Assets, Accumulated Amortization	974	850
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets	2,413	2,413
Finite-Lived Intangible Assets, Accumulated Amortization	416	330
TradenameAndTrademark [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets	101	101
Finite-Lived Intangible Assets, Accumulated Amortization	$ 101	$ 101