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Consolidated Statements of Shareholders' (Deficit) Equity - USD ($) $ in Thousands | Total | Common Stock | Additional Paid-In Capital | Retained Earnings (Accumulated Deficit) | Accumulated Other Comprehensive Income (Loss)
--- | --- | --- | --- | --- | ---
Balance at Jan. 02, 2016 | $ 222,339 | $ 494 | $ 0 | $ 221,859 | $ (14)
Balance (in shares) at Jan. 02, 2016 |  | 49,402,000 |  |  |
Net income | 51,417 | $ 0 | 0 | 51,417 | 0
Unrealized gain on available-for-sale marketable debt securities, net of tax | 14 | 0 | 0 | 0 | 14
Exercise of common stock options | 2,298 | $ 2 | 2,296 | 0 | 0
Exercise of common stock options (in shares) |  | 188,000 |  |  |
Tax effect from stock-based compensation | (1,016) | $ 0 | (1,016) | 0 | 0
Stock-based compensation | 11,961 | $ 0 | 11,961 | 0 | 0
Stock-based compensation (in shares) |  | 11,000 |  |  |
Repurchases of common stock | (126,693) | $ (60) | (13,241) | (113,392) | 0
Repurchases of common stock (in shares) |  | (6,032,000) |  |  |
Balance at Dec. 31, 2016 | 160,320 | $ 436 | 0 | 159,884 | 0
Balance (in shares) at Dec. 31, 2016 |  | 43,569,000 |  |  |
Net income | 65,077 | $ 0 | 0 | 65,077 | 0
Unrealized gain on available-for-sale marketable debt securities, net of tax | 0 |  |  |  |
Exercise of common stock options | 3,241 | $ 2 | 3,239 | 0 | 0
Exercise of common stock options (in shares) |  | 222,000 |  |  |
Stock-based compensation | 15,763 | $ 6 | 15,757 | 0 | 0
Stock-based compensation (in shares) |  | 594,000 |  |  |
Repurchases of common stock | (155,245) | $ (56) | (18,996) | (136,193) | 0
Repurchases of common stock (in shares) |  | (5,572,000) |  |  |
Balance at Dec. 30, 2017 | $ 89,156 | $ 388 | 0 | 88,768 | 0
Balance (in shares) at Dec. 30, 2017 | 38,813,000 | 38,813,000 |  |  |
Net income | $ 69,539 | $ 0 | 0 | 69,539 | 0
Unrealized gain on available-for-sale marketable debt securities, net of tax | 0 |  |  |  |
Exercise of common stock options | 2,788 | $ 2 | 2,786 | 0 | 0
Exercise of common stock options (in shares) |  | 186,000 |  |  |
Stock-based compensation | 11,412 | $ 3 | 11,409 | 0 | 0
Stock-based compensation (in shares) |  | 271,000 |  |  |
Repurchases of common stock | (282,445) | $ (84) | (14,195) | (268,166) | 0
Repurchases of common stock (in shares) |  | (8,402,000) |  |  |
Balance at Dec. 29, 2018 | $ (109,550) | $ 309 | $ 0 | $ (109,859) | $ 0
Balance (in shares) at Dec. 29, 2018 | 30,868,000 | 30,868,000 |  |  |

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