Information Concerning Product Lines, Geographic Information and Revenue Concentration (Schedule of Revenue by Product Line) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 30, 2012 segment		Jan. 01, 2012 segment		Jan. 02, 2011 segment
Revenue from External Customer [Line Items]
Number of reportable segments	1		1		1
Total revenue	$ 14,944	[1]	$ 20,969	[1]	$ 26,199	[1]
New Products [Member]
Revenue from External Customer [Line Items]
Total revenue	5,920	[1]	5,326	[1]	9,388	[1]
Mature Products [Member]
Revenue from External Customer [Line Items]
Total revenue	$ 9,024	[1]	$ 15,643	[1]	$ 16,811	[1]

[1] For all periods presented: New products represent products introduced since 2005, and include ArcticLink®, ArcticLink II, 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.