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Common Stock (Details 2) (USD $) | 0 Months Ended | 12 Months Ended | 0 Months Ended
--- | --- | --- | ---
Aug. 10, 2012 | Feb. 22, 2012 | Aug. 30, 2011 | Jul. 06, 2010 | Dec. 28, 2013 | Dec. 29, 2012 | Dec. 31, 2011 | Feb. 13, 2014 Common Stock Subsequent event Maximum
Share repurchase program |  |  |  |  |  |  |  |
Share repurchase program, amount authorized to be repurchased | $ 5,000,000 | $ 4,450,000 | $ 7,500,000 | $ 5,000,000 |  |  |  | $ 15,000,000
Options exercised (in shares) |  |  |  |  |  |  |  |
Exercise of stock options (in shares) |  |  |  |  | 13,389 | 47,185 | 47,009 |
Proceeds from exercise of options |  |  |  |  | 200,000 | 600,000 | 600,000 |
Tax Deficit on Stock Option Exercises and Restricted Share Vesting |  |  |  |  |  |  |  |
Tax deficits on stock options exercises and restricted share vestings |  |  |  |  | $ 254,000 | $ 576,000 | $ 639,000 |

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