Information Concerning Product Lines, Geographic Information and Revenue Concentration (Schedule of Revenue by Geographical Area) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 30, 2012		Jan. 01, 2012		Jan. 02, 2011
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	$ 14,944	[1]	$ 20,969	[1]	$ 26,199	[1]
United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	5,049		8,271		8,652
Europe [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	2,414		4,127		4,580
Malaysia [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	1,714		1,780		1,950
Japan [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	3,316		2,733		2,914
China [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	1,725		3,032		6,950
Rest of North America [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	327		326		431
Rest of Asia Pacific [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	$ 399		$ 700		$ 722

[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.