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 6 Months Ended
Jul. 02, 2016
Jul. 04, 2015
Jul. 02, 2016
Jul. 04, 2015
Numerator:        
Net income (loss) attributable to U.S. Auto Parts $ 934 $ (775) $ 2,186 $ (835)
Dividends on Series A Convertible Preferred Stock 60 60 120 120
Net income (loss) available to common shares $ 874 $ (835) $ 2,066 $ (955)
Denominator:        
Weighted-average common shares outstanding (basic) (in shares) 34,753 33,963 34,625 33,842
Common equivalent shares from common stock options and warrants (in shares) 5,254 0 5,030 0
Weighted-average common shares outstanding (diluted) (in shares) 40,007 33,963 39,655 33,842
Basic and diluted net income (loss) per share (in dollars per share) $ 0.03 $ (0.02) $ 0.06 $ (0.03)
Diluted net income (loss) per share (in dollars per share) $ 0.02 $ (0.02) $ 0.05 $ (0.03)