Reconciliation of Number of Common Shares used in Calculation of Basic and Diluted Earnings Per Share (EPS) (Detail) (USD $)	3 Months Ended	6 Months Ended
Jun. 30, 2012	Jul. 02, 2011	Jun. 30, 2012	Jul. 02, 2011
Shares
Basic EPS, shares	16,921,012	16,448,229	16,861,221	16,349,190
Effect of dilutive securities, shares	219,103	397,648	295,964	374,829
Diluted EPS, shares	17,140,115	16,845,877	17,157,185	16,724,019
Per-Share Amount
Basic EPS	$ 0.28	$ 0.26	$ 0.68	$ 0.46
Effect of dilutive securities		$ (0.01)	$ (0.01)	$ (0.01)
Diluted EPS	$ 0.28	$ 0.25	$ 0.67	$ 0.45

The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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- Definition

The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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- Definition

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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- Definition

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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- Definition

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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-Glossary Weighted-Average Number of Common Shares Outstanding

-URI http://asc.fasb.org/extlink&oid=6528421

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