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Equity Incentive Plans (Details) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2012 | Jan. 01, 2012 | Jan. 02, 2011
Recognized compensation expenses |  |  |
Stock Option Plan Expense | $ 2,539 | $ 2,681 | $ 1,378
Restricted Stock Expense | $ 4,449 | $ 3,432 | $ 3,261

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