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Consolidated Statements of Stockholders' Equity - USD ($) shares in Thousands, $ in Thousands | Total | Common Stock [Member] | Additional Paid-in Capital [Member] | Accumulated Other Comprehensive Income (Loss) [Member] | Retained Earnings [Member] | Treasury Stock [Member]
--- | --- | --- | --- | --- | --- | ---
Balance at Jan. 02, 2015 | $ 244,288 | $ 33 | $ 160,208 | $ (904) | $ 246,961 | $ (162,010)
Balance (in shares) at Jan. 02, 2015 |  | 32,853 |  |  |  | 7,111
Employee stock purchase plan | 1,186 | $ 0 | 836 | 0 | 0 | $ 350
Employee stock purchase plan (in shares) |  | 0 |  |  |  | (27)
Exercise of stock options, net of swaps | 1,828 | $ 0 | (94) | 0 | 0 | $ 1,922
Exercise of stock options, net of swaps (in shares) |  | 0 |  |  |  | (150)
Excess tax benefit for equity incentive plans | 6,396 | $ 0 | 6,396 | 0 | 0 | $ 0
Amortization of unrecognized stock-based compensation | 6,618 | 0 | 6,618 | 0 | 0 | 0
Purchase of treasury shares | (23,314) | $ 0 | 0 | 0 |  | $ (23,314)
Purchase of treasury shares (in shares) |  | 0 |  |  |  | 530
Foreign currency translation adjustments | (822) | $ 0 | 0 | (822) | 0 | $ 0
Grant of restricted stock units to settle accrued bonus | 6,169 | 0 | 6,169 | 0 | 0 | 0
Settlement of restricted stock units | (7,365) | $ 0 | (975) | 0 | (4,943) | $ (1,447)
Settlement of restricted stock units (in shares) |  | 0 |  |  |  | (331)
Unrealized loss on investments | (79) | $ 0 | 0 | (79) | 0 | $ 0
Dividends and dividend equivalent rights | (15,700) | 0 | 658 | 0 | (16,358) | 0
Net income | 43,599 | 0 | 0 | 0 | 43,599 | 0
Balance at Jan. 01, 2016 | 262,804 | $ 33 | 179,816 | (1,805) | 269,259 | $ (184,499)
Balance (in shares) at Jan. 01, 2016 |  | 32,853 |  |  |  | 7,133
Employee stock purchase plan | 1,190 | $ 0 | 883 | 0 | 0 | $ 307
Employee stock purchase plan (in shares) |  | 0 |  |  |  | (23)
Exercise of stock options, net of swaps | 566 | $ 0 | 161 | 0 | 0 | $ 405
Exercise of stock options, net of swaps (in shares) |  | 0 |  |  |  | (30)
Amortization of unrecognized stock-based compensation | 7,152 | $ 0 | 7,152 | 0 | 0 | $ 0
Purchase of treasury shares | (24,456) | $ 0 | 0 | 0 |  | $ (24,456)
Purchase of treasury shares (in shares) |  | 0 |  |  |  | 491
Foreign currency translation adjustments | (1,240) | $ 0 | 0 | (1,240) | 0 | $ 0
Grant of restricted stock units to settle accrued bonus | 6,334 | 0 | 6,334 | 0 | 0 | 0
Settlement of restricted stock units | (7,685) | $ 0 | (701) | 0 | (5,791) | $ (1,193)
Settlement of restricted stock units (in shares) |  | 0 |  |  |  | (315)
Unrealized loss on investments | (81) | $ 0 | 0 | (81) | 0 | $ 0
Dividends and dividend equivalent rights | (18,773) | 0 | 854 | 0 | (19,627) | 0
Other | 55 | 0 | 133 | 0 | (78) | 0
Net income | 47,480 | 0 | 0 | 0 | 47,480 | 0
Balance at Dec. 30, 2016 | 273,346 | $ 33 | 194,632 | (3,126) | 291,243 | $ (209,436)
Balance (in shares) at Dec. 30, 2016 |  | 32,853 |  |  |  | 7,256
Employee stock purchase plan | 1,207 | $ 0 | 847 | 0 | 0 | $ 360
Employee stock purchase plan (in shares) |  | 0 |  |  |  | (20)
Exercise of stock options, net of swaps | 818 | $ 0 | 144 | 0 | 0 | $ 674
Exercise of stock options, net of swaps (in shares) |  | 0 |  |  |  | (35)
Amortization of unrecognized stock-based compensation | 7,824 | $ 0 | 7,824 | 0 | 0 | $ 0
Purchase of treasury shares | (11,931) | $ 0 | 0 | 0 |  | $ (11,931)
Purchase of treasury shares (in shares) |  | 0 |  |  |  | 186
Foreign currency translation adjustments | 1,187 | $ 0 | 0 | 1,187 | 0 | $ 0
Grant of restricted stock units to settle accrued bonus | 6,918 | 0 | 6,918 | 0 | 0 | 0
Settlement of restricted stock units | (9,520) | $ 0 | (1,017) | 0 | (5,667) | $ (2,836)
Settlement of restricted stock units (in shares) |  | 0 |  |  |  | (303)
Unrealized loss on investments | (90) | $ 0 | 0 | (90) | 0 | $ 0
Dividends and dividend equivalent rights | (21,976) | 0 | 915 | 0 | (22,891) | 0
Net income | 41,305 | 0 | 0 | 0 | 41,305 | 0
Balance at Dec. 29, 2017 | $ 289,088 | $ 33 | $ 210,263 | $ (2,029) | $ 303,990 | $ (223,169)
Balance (in shares) at Dec. 29, 2017 |  | 32,853 |  |  |  | 7,084

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