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Condensed Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 31, 2015	Nov. 01, 2014	Oct. 31, 2015	Nov. 01, 2014
Income Statement [Abstract]
Net Sales	$ 24,753	$ 23,137	$ 70,897	$ 66,277
Cost of Sales	14,601	12,985	41,869	37,901
Gross Profit	10,152	10,152	29,028	28,376
Operating Expenses:
Selling and Marketing	4,563	4,606	13,555	13,483
Research and Development	1,839	1,564	5,200	4,414
General and Administrative	1,891	1,407	5,132	4,041
Operating Expenses	8,293	7,577	23,887	21,938
Operating Income, net	1,859	2,575	5,141	6,438
Other Income (Expense)	333	(46)	587	(85)
Income before Income Taxes	2,192	2,529	5,728	6,353
Income Tax Provision	873	974	2,031	2,235
Net Income	$ 1,319	$ 1,555	$ 3,697	$ 4,118
Net Income per Common Share-Basic	$ 0.18	$ 0.20	$ 0.51	$ 0.54
Net Income per Common Share-Diluted	$ 0.18	$ 0.20	$ 0.50	$ 0.52
Weighted Average Number of Common Shares Outstanding:
Basic	7,295	7,730	7,277	7,678
Diluted	7,466	7,926	7,462	7,897
Dividends Declared Per Common Share	$ 0.07	$ 0.07	$ 0.21	$ 0.21

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