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)

v3.5.0.2
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
Oct. 01, 2016
Oct. 03, 2015
Oct. 01, 2016
Oct. 03, 2015
Numerator:        
Net (loss) income attributable to U.S. Auto Parts $ (102) $ 8 $ 2,084 $ (827)
Dividends on Series A Convertible Preferred Stock 61 61 180 180
Net (loss) income available to common shares $ (163) $ (53) $ 1,904 $ (1,007)
Denominator:        
Weighted-average common shares outstanding (basic) (in shares) 34,932 34,018 34,728 33,900
Common equivalent shares from common stock options and warrants (in shares) 0 0 5,195 0
Weighted-average common shares outstanding (diluted) (in shares) 34,932 34,018 39,923 33,900
Basic and diluted net income (loss) per share (in dollars per share) $ 0.00 $ 0.00 $ 0.05 $ (0.03)
Diluted net income (loss) per share (in dollars per share) $ 0.00 $ 0.00 $ 0.05 $ (0.03)