CONDENSED STATEMENTS OF COMPREHENSIVE INCOME - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Revenues	$ 7,084,265	$ 7,704,047	$ 20,841,415	$ 22,443,005
Cost of revenues	3,627,582	3,734,470	10,776,122	10,786,382
Gross profit	3,456,683	3,969,577	10,065,293	11,656,623
Operating Expenses:
General & administrative	1,229,441	1,155,099	3,528,020	3,467,863
Marketing & selling	1,284,016	1,206,479	3,894,614	3,470,588
Research & development	392,042	363,788	1,284,914	986,201
Total Operating Expenses	2,905,499	2,725,366	8,707,548	7,924,652
Operating income	551,184	1,244,211	1,357,745	3,731,971
Other expense, net	(30,411)	(33,941)	(94,614)	(29,157)
Net income before provision for income taxes	520,773	1,210,270	1,263,131	3,702,814
(Benefit from) / provision for income taxes	(275,612)	293,370	(63,106)	1,172,836
Net income and comprehensive income	$ 796,385	$ 916,900	$ 1,326,237	$ 2,529,978
Basic net income per share (in dollars per share)	$ 0.15	$ 0.17	$ 0.25	$ 0.47
Diluted net income per share (in dollars per share)	0.15	0.17	0.25	0.47
Dividends declared per share (in dollars per share)	$ 0.15	$ 0.15	$ 0.45	$ 0.45
Weighted average common shares outstanding, basic (in shares)	5,422,541	5,375,061	5,399,131	5,348,730
Weighted average common shares outstanding, diluted (in shares)	5,424,989	5,389,425	5,406,053	5,375,472