Quarterly report pursuant to Section 13 or 15(d)

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

v3.8.0.1
Net Income (Loss) Per Share - Computation of Basic and Diluted Net Income (Loss) Per Share (Detail) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2017
Oct. 01, 2016
Sep. 30, 2017
Oct. 01, 2016
Numerator:        
Income from continuing operations $ 919 $ 358 $ 28,653 $ 3,168
Dividends on Series A Convertible Preferred Stock 41 61 149 180
Income from continuing operations available to common shares $ 878 $ 297 $ 28,504 $ 2,988
Denominator:        
Weighted-average common shares outstanding (basic) (in shares) 35,856 34,932 35,233 34,728
Common equivalent shares from common stock options, restricted stock, preferred stock and warrants (in shares) 3,629 5,659 4,625 5,348
Weighted-average common shares outstanding (diluted) (in shares) 39,485 40,591 39,858 40,076
Basic net income from continuing operations per share (USD per share) $ 0.02 $ 0.01 $ 0.81 $ 0.09
Diluted net income from continuing operations per share (USD per share) $ 0.02 $ 0.01 $ 0.72 $ 0.07