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Quarterly Financial Data (Unaudited) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Jan. 03, 2014	Sep. 27, 2013	Jun. 28, 2013	Mar. 29, 2013	Dec. 28, 2012	Sep. 28, 2012	Jun. 29, 2012	Mar. 30, 2012	Jan. 03, 2014	Dec. 28, 2012	Dec. 30, 2011
Net sales	$ 18,944	$ 17,106	$ 18,164	$ 18,001	$ 16,466	$ 15,866	$ 15,942	$ 15,509
Gross Profit	12,976	12,059	12,620	12,654	11,168	11,176	11,045	10,901	50,309	44,291	42,369
Net income (loss)	$ (876)	$ 525	$ 278	$ 471	$ (1,414)	$ (90)	$ (491)	$ 232	$ 398	$ (1,763)	$ 1,348
Net income (loss) per share - basic	$ (0.02)	$ 0.01	$ 0.01	$ 0.01	$ (0.04)	$ 0.00	$ (0.01)	$ 0.01	$ 0.01	$ (0.05)	$ 0.04
Net income (loss) per share - diluted	$ (0.02)	$ 0.01	$ 0.01	$ 0.01	$ (0.04)	$ 0.00	$ (0.01)	$ 0.01	$ 0.01	$ (0.05)	$ 0.04

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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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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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