Reconciliation of Number of Common Shares used in Calculation of Basic and Diluted Earnings Per Share (EPS) (Detail) (USD $)	3 Months Ended
	Mar. 29, 2014	Mar. 30, 2013
Earnings Per Share [Line Items]
Basic EPS, shares	17,205,892	17,009,773
Effect of dilutive securities, shares	158,481	167,103
Diluted EPS, shares	17,364,373	17,176,876
Basic EPS	$ 0.29	$ 0.27
Effect of dilutive securities
Diluted EPS	$ 0.29	$ 0.27