CONDENSED STATEMENTS OF COMPREHENSIVE INCOME - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Revenues	$ 7,001,409	$ 7,694,137	$ 13,757,150	$ 14,738,958
Cost of revenues	3,731,667	3,802,874	7,148,540	7,051,913
Gross profit	3,269,742	3,891,263	6,608,610	7,687,045
Operating Expenses:
General & administrative	1,154,489	1,128,616	2,298,579	2,312,763
Marketing & selling	1,322,117	1,165,510	2,610,598	2,264,110
Research & development	437,090	277,429	892,872	622,412
Total Operating Expenses	2,913,696	2,571,555	5,802,049	5,199,285
Operating income	356,046	1,319,708	806,561	2,487,760
Other income (expense), net	(30,877)	3,235	(64,204)	4,784
Net income before provision for income taxes	325,169	1,322,943	742,357	2,492,544
Provision for income taxes	72,840	466,024	212,506	879,466
Net income and comprehensive income	$ 252,329	$ 856,919	$ 529,851	$ 1,613,078
Basic net income per share (in dollars per share)	$ 0.05	$ 0.16	$ 0.10	$ 0.30
Diluted net income per share (in dollars per share)	0.05	0.16	0.10	0.30
Dividends declared per share (in dollars per share)	$ 0.15	$ 0.15	$ 0.30	$ 0.30
Weighted average common shares outstanding, basic (in shares)	5,399,270	5,352,664	5,387,232	5,335,347
Weighted average common shares outstanding, diluted (in shares)	5,408,372	5,375,076	5,396,740	5,367,307