Net Loss per Share (Tables)

6 Months Ended

Jun. 28, 2014

Earnings Per Share [Abstract]

Net Loss per Share

	Three Months Ended						Six Months Ended
	June 28, 2014			June 29, 2013			June 28, 2014			June 29, 2013
Numerator:
Net loss	$	(5,964	)	$	(448	)	$	(15,957	)	$	(1,656	)
Denominator:
Weighted average common shares outstanding	33,274			32,171			33,105			32,051
Less: weighted average unvested shares of common stock subject to repurchase	—			—			—			3
Weighted average common shares used in computing basic and diluted net loss per share	33,274			32,171			33,105			32,048
Basic and diluted net loss per share	$	(0.18	)	$	(0.01	)	$	(0.48	)	$	(0.05	)
Historical outstanding anti-dilutive securities not included in diluted net loss per share calculation:
Common stock options and awards	8,475			8,550			8,475			8,550
Common stock warrants	2			2			2			2
	8,477			8,552			8,477			8,552