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CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) (Parenthetical) (USD $) In Thousands, unless otherwise specified | Jul. 12, 2014 | Dec. 28, 2013
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Statement Of Financial Position [Abstract] |  |
Common stock, par value |  |
Common stock, shares authorized | 100,000 | 100,000
Common stock, shares outstanding | 37,725 | 37,371
Preferred stock, par value |  |
Preferred stock, shares authorized | 10,000 | 10,000
Preferred stock, shares outstanding | 0 | 0

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