CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Unaudited) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Revenue	$ 6,558,381	$ 7,124,591	$ 19,073,266	$ 19,922,941
Cost of goods sold	3,879,341	4,247,587	11,906,470	12,043,928
Gross profit	2,679,040	2,877,004	7,166,796	7,879,013
Operating expenses:
Selling, general and administrative expenses	1,660,133	1,416,634	5,244,195	4,517,771
Research and development expenses	839,704	797,986	2,424,820	2,744,075
Total operating expenses	2,499,837	2,214,620	7,669,015	7,261,846
Operating income (loss)	179,203	662,384	(502,219)	617,167
Interest and other income, net	17,072	14,591	37,605	23,840
Income (loss) before income taxes	196,275	676,975	(464,614)	641,007
Income tax expense (benefit)	78,501	190,000	(200,677)	177,000
Net income (loss)	117,774	486,975	(263,937)	464,007
Net income (loss) per share:
Basic income (loss) per share (in Dollars per share)	$ 0.02	$ 0.10	$ (0.05)	$ 0.09
Diluted income (loss) per share (in Dollars per share)	$ 0.02	$ 0.10	$ (0.05)	$ 0.09
Comprehensive income:
Net income (loss)	117,774	486,975	(263,937)	464,007
Foreign currency translation adjustments	(26,123)	(28,754)	(49,375)	(85,071)
Comprehensive income (loss)	$ 91,651	$ 458,221	$ (313,312)	$ 378,936