CONDENSED CONSOLIDATED STATEMENTS OF INCOME (unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Net sales	$ 17,224	$ 13,804	$ 33,388	$ 27,423
Cost of sales	10,063	8,016	19,735	15,909
Gross profit	7,161	5,788	13,653	11,514
Operating expenses:
Engineering, design and product development	860	1,151	1,728	2,381
Selling and marketing	2,100	2,257	3,923	4,222
General and administrative	2,002	2,000	3,842	3,888
Legal fees associated with lawsuit (Note 7)	(6)	35	1,738	47
	4,956	5,443	11,231	10,538
Operating income	2,205	345	2,422	976
Interest and other income (expense):
Interest, net	(10)	(12)	(16)	(26)
Other, net	(26)	(12)	(12)	(20)
	(36)	(24)	(28)	(46)
Income before income taxes	2,169	321	2,394	930
Income tax provision	781	146	862	361
Net income	$ 1,388	$ 175	$ 1,532	$ 569
Net income per common share:
Basic (in Dollars per share)	$ 0.18	$ 0.02	$ 0.20	$ 0.07
Diluted (in Dollars per share)	$ 0.18	$ 0.02	$ 0.20	$ 0.07
Shares used in per-share calculation:
Basic (in Shares)	7,798	8,376	7,827	8,374
Diluted (in Shares)	7,819	8,520	7,847	8,538
Dividends declared and paid per common share: (in Dollars per share)	$ 0.08	$ 0.08	$ 0.16	$ 0.15