Annual report pursuant to Section 13 and 15(d)

Net Loss Per Share - Computation of Basic and Diluted Net Loss Per Share (Detail)

v2.4.0.8
Net Loss Per Share - Computation of Basic and Diluted Net Loss Per Share (Detail) (USD $)
In Thousands, except Per Share data, unless otherwise specified
3 Months Ended 12 Months Ended
Dec. 28, 2013
Sep. 28, 2013
Jun. 29, 2013
Mar. 30, 2013
Dec. 29, 2012
Sep. 29, 2012
Jun. 30, 2012
Mar. 31, 2012
Dec. 28, 2013
Dec. 29, 2012
Dec. 31, 2011
Numerator:                      
Net loss $ (1,325) $ (1,399) $ (9,567) $ (3,343) $ (30,783) $ (2,711) $ (1,696) $ (788) $ (15,634) $ (35,978) $ (15,137)
Dividends on Series A Convertible Preferred Stock                 (184)    
Net loss available to common shares                 $ (15,818) $ (35,978) $ (15,137)
Denominator:                      
Weighted-average common shares outstanding (basic)                 32,697 30,818 30,546
Common equivalent shares from Preferred Stock, common stock options and warrants                         
Weighted-average common shares outstanding (diluted) 33,308 33,218 33,119 31,141 31,128 30,854 30,651 30,638 32,697 30,818 30,546
Basic and diluted net loss per share                 $ (0.48) $ (1.17) $ (0.50)