Condensed Consolidated Statements of Income (Unaudited) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Sales:
Products	$ 14,869,239	$ 12,946,714	$ 29,511,029	$ 26,688,295
Consulting services	705,284	741,301	1,376,642	1,446,898
Total sales	15,574,523	13,688,015	30,887,671	28,135,193
Cost of sales:
Products	6,343,866	5,605,548	12,811,120	11,613,449
Consulting services	508,294	426,197	965,397	887,972
Total cost of sales	6,852,160	6,031,745	13,776,517	12,501,421
Gross profit	8,722,363	7,656,270	17,111,154	15,633,772
Selling, general and administrative expenses	5,947,087	5,667,505	12,090,372	11,270,910
Research and development expenses	989,402	1,079,545	2,114,277	2,198,294
Operating income	1,785,874	909,220	2,906,505	2,164,568
Other income (expense), net	(93,354)	(86,303)	(150,182)	(190,682)
Income before income taxes	1,692,520	822,917	2,756,323	1,973,886
Income tax expense	527,261	21,271	861,347	305,638
Net income	$ 1,165,259	$ 801,646	$ 1,894,976	$ 1,668,248
Net income per common share:
Basic (in Dollars per share)	$ 0.21	$ 0.14	$ 0.34	$ 0.30
Diluted (in Dollars per share)	$ 0.20	$ 0.14	$ 0.33	$ 0.29
Weighted average common shares outstanding:
Basic (in Shares)	5,655,146	5,537,677	5,648,025	5,529,430
Diluted (in Shares)	5,774,748	5,671,845	5,770,207	5,669,016
Cash dividends declared per common share (in Dollars per share)	$ 0.11	$ 0.11	$ 0.22	$ 0.22