Annual report pursuant to Section 13 and 15(d)

Net Loss Per Share (Details)

v2.4.0.6
Net Loss Per Share (Details) (USD $)
In Thousands, except Per Share data, unless otherwise specified
3 Months Ended 12 Months Ended
Dec. 29, 2012
Sep. 29, 2012
Jun. 30, 2012
Mar. 31, 2012
Dec. 31, 2011
Oct. 01, 2011
Jul. 02, 2011
Apr. 02, 2011
Dec. 29, 2012
Dec. 31, 2011
Jan. 01, 2011
Numerator:                      
Net loss $ (30,783) $ (2,711) $ (1,696) $ (788) $ (7,020) $ (5,308) $ (2,564) $ (245) $ (35,978) $ (15,137) $ (13,926)
Denominator:                      
Weighted-average common shares outstanding (basic)                 30,818 30,546 30,269
Common equivalent shares from common stock options and warrants                         
Weighted average shares used in computing diluted net loss per common share 31,128 30,854 30,651 30,638 30,618 30,571 30,543 30,450 30,818 30,546 30,269
Basic and diluted net loss per share                 $ (1.17) $ (0.50) $ (0.46)