v2.4.0.6

Net Income Per Share (Details) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 29, 2012	Dec. 31, 2011	Jan. 01, 2011
Reconciliation of the basic and diluted net income per share computations
Weighted average common shares outstanding used in basic net income per share calculation	23,358	22,743	21,855
Potential dilutive common stock equivalents, using treasury stock method	487	737	1,143
Shares used in diluted net income per share computation	23,845	23,480	22,998
Net Income Per Share (Textual) [Abstract]
Weighted average common share equivalents consisting of stock options included in the calculation of diluted net income per share	487	737	1,143

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The sum of dilutive potential common shares or units used in the calculation of the diluted per-share or per-unit computation.

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The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.

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Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.

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