Significant Customers & Geographical Information (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Sales by product and by geographical region
Total sales	$ 2,444,195	$ 2,129,241	$ 7,211,973	$ 6,377,574
United States
Sales by product and by geographical region
Total sales	1,526,608	1,342,798	3,907,560	3,256,933
Canada
Sales by product and by geographical region
Total sales	119,594	133,605	241,937	470,451
Other Foreign
Sales by product and by geographical region
Total sales	797,993	652,838	3,062,476	2,650,189
Instruments
Sales by product and by geographical region
Total sales	491,179	368,036	1,760,079	1,495,773
Handpieces
Sales by product and by geographical region
Total sales	1,927,391	1,717,201	5,328,751	4,756,482
Other
Sales by product and by geographical region
Total sales	$ 25,625	$ 44,004	$ 123,143	$ 125,319