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. 03, 2015 |
Sep. 27, 2014 |
Oct. 03, 2015 |
Sep. 27, 2014 |
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| Net income (loss) attributable to U.S. Auto Parts | $ 8 | $ (2,494) | $ (827) | $ (4,473) |
| Dividends on Series A Convertible Preferred Stock | 61 | 61 | 180 | 180 |
| Net loss available to common shares | $ (53) | $ (2,555) | $ (1,007) | $ (4,653) |
| Denominator: | ||||
| Weighted-average common shares outstanding (basic) (in shares) | 34,018 | 33,532 | 33,900 | 33,459 |
| Common equivalent shares from common stock options and warrants (in shares) | 0 | 0 | 0 | 0 |
| Weighted-average common shares outstanding (diluted) (in shares) | 34,018 | 33,532 | 33,900 | 33,459 |
| Basic and diluted net loss per share (in dollars per share) | $ 0.00 | $ (0.08) | $ (0.03) | $ (0.14) |
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- Definition Denominator [Abstract] No definition available.
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- Definition Numerator [Abstract] No definition available.
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- Definition The amount of net income or loss for the period per each share in instances when basic and diluted earnings per share are the same amount and reported as a single line item on the face of the financial statements. Basic earnings per share is the amount of net income or loss for the period per each share of common stock or unit outstanding during the reporting period. Diluted earnings per share includes the amount of net income or loss for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. No definition available.
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- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Net income after adjustments for dividends on preferred stock (declared in the period) and/or cumulative preferred stock (accumulated for the period). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The amount of preferred stock dividends that is an adjustment to net income apportioned to common stockholders. No definition available.
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- Definition The sum of dilutive potential common shares or units used in the calculation of the diluted per-share or per-unit computation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Average number of shares or units issued and outstanding that are used in calculating basic and diluted earnings per share (EPS). No definition available.
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