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Consolidated Statement of Shareholders' Equity - USD ($) shares in Thousands, $ in Thousands | Total | Common Stock [Member] | Additional Paid-In Capital [Member] | Retained Earnings [Member] | Accumulated Other Comprehensive Income (Loss) [Member]
--- | --- | --- | --- | --- | ---
Balance (in shares) at Dec. 28, 2013 |  | 54,901 |  |  |
Balance at Dec. 28, 2013 | $ 225,220 | $ 549 | $ 5,382 | $ 219,276 | $ 13
Comprehensive income: |  |  |  |  |
Net income | 67,974 | 0 | 0 | 67,974 | 0
Unrealized gain (loss) on available-for-sale marketable debt securities | (47) | $ 0 | 0 | 0 | (47)
Exercise of common stock options (in shares) |  | 239 |  |  |
Exercise of common stock options | 2,873 | $ 2 | 2,871 | 0 | 0
Tax effect from stock-based compensation | 581 | $ 0 | 581 | 0 | 0
Stock-based compensation (in shares) |  | (96) |  |  |
Stock-based compensation | 6,798 | $ (1) | 6,799 | 0 | 0
Repurchases of common stock (in shares) |  | (2,246) |  |  |
Repurchases of common stock | (46,492) | $ (22) | (15,633) | (30,837) | 0
Balance (in shares) at Jan. 03, 2015 |  | 52,798 |  |  |
Balance at Jan. 03, 2015 | 256,907 | $ 528 | 0 | 256,413 | (34)
Comprehensive income: |  |  |  |  |
Net income | 50,519 | 0 | 0 | 50,519 | 0
Unrealized gain (loss) on available-for-sale marketable debt securities | 20 | $ 0 | 0 | 0 | 20
Exercise of common stock options (in shares) |  | 253 |  |  |
Exercise of common stock options | 2,976 | $ 3 | 2,973 | 0 | 0
Tax effect from stock-based compensation | 1,828 | $ 0 | 1,828 | 0 | 0
Stock-based compensation (in shares) |  | (7) |  |  |
Stock-based compensation | 10,290 | $ 0 | 10,290 | 0 | 0
Repurchases of common stock (in shares) |  | (3,642) |  |  |
Repurchases of common stock | $ (100,201) | $ (37) | (15,091) | (85,073) | 0
Balance (in shares) at Jan. 02, 2016 | 49,402 | 49,402 |  |  |
Balance at Jan. 02, 2016 | $ 222,339 | $ 494 | 0 | 221,859 | (14)
Comprehensive income: |  |  |  |  |
Net income | 51,417 | 0 | 0 | 51,417 | 0
Unrealized gain (loss) on available-for-sale marketable debt securities | 14 | $ 0 | 0 | 0 | 14
Exercise of common stock options (in shares) |  | 188 |  |  |
Exercise of common stock options | 2,298 | $ 2 | 2,296 | 0 | 0
Tax effect from stock-based compensation | (1,016) | $ 0 | (1,016) | 0 | 0
Stock-based compensation (in shares) |  | 11 |  |  |
Stock-based compensation | 11,961 | $ 0 | 11,961 | 0 | 0
Repurchases of common stock (in shares) |  | (6,032) |  |  |
Repurchases of common stock | $ (126,693) | $ (60) | (13,241) | (113,392) | 0
Balance (in shares) at Dec. 31, 2016 | 43,569 | 43,569 |  |  |
Balance at Dec. 31, 2016 | $ 160,320 | $ 436 | $ 0 | $ 159,884 | $ 0

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