Condensed Consolidated Statements of Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 28, 2017	Oct. 29, 2016	Oct. 28, 2017	Oct. 29, 2016
Income Statement [Abstract]
Revenue	$ 28,760	$ 23,342	$ 80,701	$ 72,791
Cost of Revenue	16,966	13,701	49,342	43,373
Gross Profit	11,794	9,641	31,359	29,418
Operating Expenses:
Selling and Marketing	5,532	4,578	15,958	14,186
Research and Development	2,033	1,338	5,340	4,538
General and Administrative	2,597	1,891	6,780	5,566
Operating Expenses	10,162	7,807	28,078	24,290
Operating Income	1,632	1,834	3,281	5,128
Other Expense, Net	(12)	(60)	(45)	(72)
Income before Income Taxes	1,620	1,774	3,236	5,056
Income Tax Provision	201	623	579	1,595
Net Income	$ 1,419	$ 1,151	$ 2,657	$ 3,461
Net Income per Common Share-Basic:	$ 0.21	$ 0.15	$ 0.38	$ 0.47
Net Income per Common Share-Diluted:	$ 0.21	$ 0.15	$ 0.38	$ 0.46
Weighted Average Number of Common Shares Outstanding:
Basic	6,725,414	7,444,478	6,968,285	7,406,977
Diluted	6,820,921	7,594,228	7,077,886	7,571,682
Dividends Declared Per Common Share	$ 0.07	$ 0.07	$ 0.21	$ 0.21