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Organization and Summary of Significant Accounting Policies (Details 2) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 30, 2013	Mar. 31, 2012	Mar. 30, 2013 Level 1	Dec. 29, 2012 Level 1	Mar. 30, 2013 Level 2	Dec. 29, 2012 Level 2	Mar. 30, 2013 Total	Dec. 29, 2012 Total
Liabilities:
Interest rate swaps					$ (711)	$ (766)	$ (711)	$ (766)
Assets:
Non-qualified Deferred Compensation Plan Investments			477	440			477	440
Income Taxes
Provisions for income taxes	$ 592	$ 892
Effective tax rate (as a percent)	35.90%	34.10%

- Definition

A ratio calculated by dividing the reported amount of income tax expense attributable to continuing operations for the period by GAAP-basis pretax income from continuing operations.

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- Definition

The sum of the current income tax expense or benefit and the deferred income tax expense or benefit pertaining to continuing operations.

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