| CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Parenthetical) (USD $) In Thousands, unless otherwise specified | 4 Months Ended | |
|---|---|---|
| Apr. 15, 2012 | Apr. 17, 2011 | |
| CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS | ||
| Labor, stock-based compensation | $ 143 | $ 245 | 
| Selling, general, and administrative, stock-based compensation | $ 1,059 | $ 613 | 
| X | ||||||||||
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- Definition This element represents the expense recognized in direct labour expense during the period arising from share-based compensation arrangements (for example, shares of stock, stock options or other equity instruments) with employees. No definition available. 
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| X | ||||||||||
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- Definition This element represents the expense recognized in selling, general and administrative expense during the period arising from share-based compensation arrangements (for example, shares of stock, stock options or other equity instruments) with employees. No definition available. 
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| X | ||||||||||
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- Details 
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