Unaudited Quarterly Financial Data - Summary of Consolidated Quarterly Results of Operations (Detail) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 28, 2013	Sep. 28, 2013	Jun. 29, 2013	Mar. 30, 2013	Dec. 29, 2012	Sep. 29, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 28, 2013	Dec. 29, 2012	Dec. 31, 2011
Quarterly Financial Information Disclosure [Abstract]
Net sales	$ 62,035	$ 64,858	$ 62,847	$ 49,563	$ 45,211	$ 44,743	$ 46,486	$ 38,100	$ 239,303	$ 174,540	$ 167,276
Gross profit	20,625	20,920	21,030	17,559	16,009	15,242	16,481	11,936	80,134	59,668	39,105
Net (loss) income	$ 5,343	$ 6,289	$ 9,922	$ 5,264	$ 3,194	$ 2,722	$ 3,690	$ (652)	$ 26,819	$ 8,955	$ (16,898)
Net (loss) income per share - basic	$ 0.11	$ 0.14	$ 0.20	$ 0.10	$ 0.06	$ 0.05	$ 0.07	$ (0.01)	$ 0.55	$ 0.17	$ (0.31)
Net (loss) income per share - diluted	$ 0.11	$ 0.13	$ 0.19	$ 0.09	$ 0.06	$ 0.05	$ 0.07	$ (0.01)	$ 0.51	$ 0.16	$ (0.31)