Balance Sheet Components (Tables)

12 Months Ended

Dec. 29, 2013

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Schedule of Supplemental Balance Sheet Disclosures

	December 29, 2013			December 30, 2012
	(in thousands)
Inventories:
Raw materials	$	19		$	32
Work-in-process	1,343			2,599
Finished goods	2,774			397
	$	4,136		$	3,028
Other current assets:
Prepaid expenses	$	845		$	954
Other	427			32
	$	1,272		$	986
Property and equipment:
Equipment	$	13,294		$	12,803
Software	3,349			5,682
Furniture and fixtures	710			746
Leasehold improvements	640			658
	17,993			19,889
Accumulated depreciation and amortization	(15,153		)	(17,230		)
	$	2,840		$	2,659
Accrued liabilities:
Employee related accruals	$	2,821		$	1,035
Other	698			179
	$	3,519		$	1,214