Balance Sheet Components (Tables)

12 Months Ended

Dec. 30, 2012

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Schedule of Supplemental Balance Sheet Disclosures

	December 30, 2012			January 1, 2012
	(in thousands)
Inventories:
Raw materials	$	32		$	52
Work-in-process	2,599			3,261
Finished goods	397			451
	$	3,028		$	3,764
Other current assets:
Prepaid expenses	$	954		$	575
Other	32			38
	$	986		$	613
Property and equipment:
Equipment	$	12,803		$	12,200
Software	5,682			7,065
Furniture and fixtures	746			747
Leasehold improvements	658			659
	19,889			20,671
Accumulated depreciation and amortization	(17,230		)	(18,490		)
	$	2,659		$	2,181
Other assets	186			211
Accrued liabilities:
Employee related accruals	$	1,035		$	845
Other	179			273
	$	1,214		$	1,118