Consolidated Statements Of Income (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Jan. 01, 2011	Jan. 02, 2010
Consolidated Statements Of Income [Abstract]
Net sales	$ 174,637	$ 158,312	$ 141,764
Cost of goods sold	77,613	70,090	65,501
Gross Profit	97,024	88,222	76,263
Selling, general and administrative expenses	74,451	68,817	63,978
Service and distribution costs	7,830	7,524	6,763
Research and development expenses	2,697	2,811	2,817
Restructuring charges			1,860
Operating Income	12,046	9,070	845
Interest income	12	25	41
Interest expense	(661)	(975)	(1,166)
Other (expense) income	(248)	(270)	195
Interest and Other (Expense) Income	(897)	(1,220)	(930)
Income (Loss) Before Income Taxes	11,149	7,850	(85)
Income tax provision (benefit)	2,839	1,642	(1,644)
Net Income	$ 8,310	$ 6,208	$ 1,559
Net Income Per Share:
Basic	$ 0.68	$ 0.49	$ 0.11
Diluted	$ 0.64	$ 0.48	$ 0.11
Weighted Average Shares Outstanding:
Denominator for Basic Net Income Per Share	12,195	12,686	14,772
Effect of dilutive securities	810	379	10
Denominator for Diluted Net Income Per Share	13,005	13,065	14,782