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Consolidated Statements of Stockholders' Equity (USD $) In Thousands, except Share data, unless otherwise specified | Total | Common Stock | Additional Paid-In Capital | Accumulated Deficit | Accumulated Other Comprehensive Income
--- | --- | --- | --- | --- | ---
Beginning Balance Value at Jan. 01, 2011 | $ 170,849 | $ 22 | $ 225,755 | $ (57,000) | $ 2,072
Beginning Balance Shares at Jan. 01, 2011 |  | 22,314,783 |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |
Net income (loss) | 28,685 |  |  | 28,685 |
Employee benefit plan adjustment | (39) |  |  |  | (39)
Foreign currency translation adjustments | (484) |  |  |  | (484)
Issuance of common stock under stock-based compensation plans | 10,765 | 1 | 10,764 |  |
Issuance of common stock under stock-based compensation plans, Shares |  | 1,133,028 |  |  |
Stock-based compensation expense | 4,473 |  | 4,473 |  |
Repurchases and retirement of common stock | (4,257) |  | (4,257) |  |
Repurchases and retirement of common stock, Shares |  | (265,040) |  |  |
Ending Balance Value at Dec. 31, 2011 | 209,992 | 23 | 236,735 | (28,315) | 1,549
Ending Balance Shares at Dec. 31, 2011 |  | 23,182,771 |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |
Net income (loss) | 4,465 |  |  | 4,465 |
Employee benefit plan adjustment | (11) |  |  |  | (11)
Foreign currency translation adjustments | (264) |  |  |  | (264)
Unrealized gain (loss) on investments, net of tax | (2) |  |  |  | (2)
Issuance of common stock under stock-based compensation plans | 4,205 |  | 4,205 |  |
Issuance of common stock under stock-based compensation plans, Shares |  | 655,424 |  |  |
Stock-based compensation expense | 5,890 |  | 5,890 |  |
Repurchases and retirement of common stock | (8,504) |  | (8,504) |  |
Repurchases and retirement of common stock, Shares | (587,766) | (587,766) |  |  |
Ending Balance Value at Dec. 29, 2012 | 215,771 | 23 | 238,326 | (23,850) | 1,272
Ending Balance Shares at Dec. 29, 2012 | 23,250,429 | 23,250,429 |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |
Net income (loss) | (14,146) |  |  | (14,146) |
Employee benefit plan adjustment | 151 |  |  |  | 151
Foreign currency translation adjustments | (818) |  |  |  | (818)
Unrealized gain (loss) on investments, net of tax | 7 |  |  |  | 7
Issuance of common stock under stock-based compensation plans | 3,734 | 1 | 3,733 |  |
Issuance of common stock under stock-based compensation plans, Shares |  | 619,617 |  |  |
Stock-based compensation expense | 7,674 |  | 7,674 |  |
Repurchases and retirement of common stock | (5,000) | 0 | (5,000) |  |
Repurchases and retirement of common stock, Shares | (332,771) | (332,771) |  |  |
Ending Balance Value at Dec. 28, 2013 | $ 207,373 | $ 24 | $ 244,733 | $ (37,996) | $ 612
Ending Balance Shares at Dec. 28, 2013 | 23,537,275 | 23,537,275 |  |  |

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