Condensed Consolidated Statements of Income (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Aug. 02, 2014	Aug. 03, 2013	Aug. 02, 2014	Aug. 03, 2013
Income Statement [Abstract]
Net Sales	$ 22,366	$ 17,194	$ 43,140	$ 32,679
Cost of Sales	12,777	10,271	24,915	19,980
Product Replacement Related Costs				672
Gross Profit	9,589	6,923	18,225	12,027
Operating Expenses:
Selling and Marketing	4,503	3,382	8,878	6,954
Research and Development	1,479	1,274	2,850	2,387
General and Administrative	1,443	1,380	2,634	2,521
Operating Expenses	7,425	6,036	14,362	11,862
Operating Income, net	2,164	887	3,863	165
Other Income (Expense)	83	(25)	(38)	(62)
Income from Continuing Operations before Income Taxes	2,247	862	3,825	103
Income Tax Provision for Continuing Operations	812	331	1,261	11
Income from Continuing Operations	1,435	531	2,564	92
Income from Discontinued Operations, net of taxes of $94 and $87, for the three and six months ended August 3, 2013, respectively		165		155
Net Income	$ 1,435	$ 696	$ 2,564	$ 247
Net Income per Common Share-Basic:
From Continuing Operations	$ 0.19	$ 0.07	$ 0.34	$ 0.01
From Discontinued Operations		$ 0.02		$ 0.02
Net Income Per Common Share-Basic	$ 0.19	$ 0.09	$ 0.34	$ 0.03
Net Income per Common Share-Diluted:
From Continuing Operations	$ 0.18	$ 0.07	$ 0.33	$ 0.01
From Discontinued Operations		$ 0.02		$ 0.02
Net Income Per Common Share-Diluted	$ 0.18	$ 0.09	$ 0.33	$ 0.03
Weighted Average Number of Common Shares Outstanding:
Basic	7,704	7,458	7,652	7,429
Diluted	7,916	7,655	7,883	7,617
Dividends Declared Per Common Share	$ 0.07	$ 0.07	$ 0.14	$ 0.14