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Reconciliation of Shares Used to Calculate Basic and Diluted Net Income Per Share (Detail) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jul. 04, 2014	Jun. 28, 2013	Jul. 04, 2014	Jun. 28, 2013
Schedule Of Earnings Per Share Basic and Diluted [Line Items]
Shares used in basic per share computation	13,520	13,637	13,528	13,658
Shares used in diluted per share computation	13,873	14,007	13,919	14,068
Employee Stock Option
Schedule Of Earnings Per Share Basic and Diluted [Line Items]
Effect of dilutive stock outstanding	65	70	73	75
Restricted Stock Units (RSUs)
Schedule Of Earnings Per Share Basic and Diluted [Line Items]
Effect of dilutive stock outstanding	288	300	318	335

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Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of share based payment arrangements using the treasury stock method.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

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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.

+ References

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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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

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