|
Stockholders' Equity and Share-Based Compensation (Tables)
|
12 Months Ended |
|
Jan. 03, 2015
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
| Schedule of Changes in Company's Ownership Interest in AutoMD |
The table below presents the changes in the Company's ownership interest in AutoMD on the Company's equity:
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Fiscal Year Ended |
|
|
January 3, 2015 |
|
December 28, 2013 |
|
December 29, 2012 |
Net loss attributable to U.S. Auto Parts stockholders' |
|
$ |
(6,879 |
) |
|
$ |
(15,634 |
) |
|
$ |
(35,978 |
) |
Transfers (to) from the noncontrolling interest: |
|
|
|
|
|
|
Increase in U.S. Auto Parts paid-in-capital from sale of AutoMD common stock |
|
2,512 |
|
|
— |
|
|
— |
|
Changes from net loss attributable to U.S. Auto Parts stockholders' and transfers to noncontrolling interest |
|
$ |
(4,367 |
) |
|
$ |
(15,634 |
) |
|
$ |
(35,978 |
) |
|
| Summary of Stock Option Activity |
The following table summarizes the Company’s stock option activity for the fiscal year ended January 3, 2015, and details regarding the options outstanding and exercisable at January 3, 2015:
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Shares |
|
Weighted
Average
Exercise Price
|
|
Weighted Average
Remaining
Contractual
Term (in years)
|
|
Aggregate
Intrinsic Value(1)
|
Options outstanding, December 28, 2013 |
5,320 |
|
|
$ |
2.97 |
|
|
6.77 |
|
|
Granted |
840 |
|
|
$ |
2.32 |
|
|
|
|
|
Exercised |
(142 |
) |
|
$ |
2.06 |
|
|
|
|
|
Cancelled: |
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|
|
|
|
|
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Forfeited |
(511 |
) |
|
$ |
1.70 |
|
|
|
|
|
Expired |
(226 |
) |
|
$ |
6.61 |
|
|
|
|
|
Options outstanding, January 3, 2015 |
5,281 |
|
|
$ |
2.85 |
|
|
6.10 |
|
$ |
1,867 |
|
Vested and expected to vest at January 3, 2015 |
4,884 |
|
|
$ |
2.93 |
|
|
5.87 |
|
$ |
1,686 |
|
Options exercisable, January 3, 2015 |
3,466 |
|
|
$ |
3.30 |
|
|
4.68 |
|
$ |
1,004 |
|
|
|
(1) |
These amounts represent the difference between the exercise price and the closing price of U.S. Auto Parts Network, Inc. common stock on January 3, 2015 as reported on the NASDAQ Stock Market, for all options outstanding that have an exercise price currently below the closing price. |
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| Summary of Share-based Compensation from Options, Warrants and Stock Awards |
Share-based compensation from options, warrants and stock awards, is included in our consolidated statements of comprehensive operations, as follows:
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Fiscal Year Ended |
|
January 3, 2015 |
|
December 28, 2013 |
|
December 29, 2012 |
Marketing expense |
$ |
540 |
|
|
$ |
285 |
|
|
$ |
505 |
|
General and administrative expense |
1,476 |
|
|
805 |
|
|
1,119 |
|
Fulfillment expense (1)
|
220 |
|
|
102 |
|
|
(38 |
) |
Technology expense |
135 |
|
|
71 |
|
|
87 |
|
Total share-based compensation expense |
$ |
2,371 |
|
|
$ |
1,263 |
|
|
$ |
1,673 |
|
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|
(1) |
For the fifty-two weeks ended December 29, 2012, the negative balance was due to an adjustment of $279 related to performance stock options where the performance goal was not met or it was not probable to be met at the end of the requisite service period.
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| Surrendered Stock Options and New Stock Options Member |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Summary of Assumptions Used |
The fair value of the surrendered stock options and the new stock options was estimated on the date of the exchange using the Black-Scholes option pricing model with the following assumptions:
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|
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|
Surrendered
Stock Options
|
|
New
Stock Options
|
Expected life |
1.93 – 6.87 years |
|
5.84 years |
Risk-free interest rate |
0.5% – 2.4% |
|
2.0% |
Expected volatility |
55% – 73% |
|
72% |
Expected dividend yield |
—% |
|
—% |
|
| Employee Stock Option |
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
| Summary of Assumptions Used |
The fair value of each option grant, excluding those options issued from the stock option exchange program as discussed above, was estimated on the date of grant using the Black-Scholes option pricing model with the following assumptions for each of the periods ended:
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Fiscal Year Ended |
|
January 3, 2015 |
|
December 28, 2013 |
|
December 29, 2012 |
Expected life |
5.30 - 5.37 years |
|
5.21 – 5.73 years |
|
5.73 years |
Risk-free interest rate |
2% - 2% |
|
1% – 2% |
|
1% |
Expected volatility |
62% - 68% |
|
67% – 73% |
|
71% – 74% |
Expected dividend yield |
—% |
|
—% |
|
—% |
|