Information Concerning Product Lines, Geographic Information and Revenue Concentration (Schedule of Revenue by Geographical Area) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 30, 2014		Mar. 31, 2013
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	$ 11,164	[1]	$ 3,017	[1]
South Korea [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	7,799		31
United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	1,064		941
Japan [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	682		602
China [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	383		131
Malaysia [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	459		685
Europe [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	736		450
Rest of North America [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	36		177
Asia Pacific [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	$ 5		$ 0

[1] For all periods presented: New products include ArcticLink®, ArcticLink II, ArcticLink III, Eclipse™ II, PolarPro®, PolarPro II, and QuickPCI II. Mature products include Eclipse, EclipsePlus, pASIC® 1, pASIC 2, pASIC 3, QuickFC, QuickMIPS, QuickPCI, QuickRAM, and V3, as well as royalty revenue, programming hardware and software.