Significant Customers & Geographical Information (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Sales by product and by geographical region
Total sales	$ 2,506,932	$ 2,278,235	$ 5,127,766	$ 4,767,778
United States
Sales by product and by geographical region
Total sales	1,181,374	1,080,451	2,395,018	2,380,952
Canada
Sales by product and by geographical region
Total sales	47,138	66,741	71,873	122,343
Other Foreign
Sales by product and by geographical region
Total sales	1,278,420	1,131,043	2,660,875	2,264,483
Instruments
Sales by product and by geographical region
Total sales	683,398	751,451	1,524,379	1,268,901
Handpieces
Sales by product and by geographical region
Total sales	1,784,981	1,475,696	3,518,197	3,401,359
Other
Sales by product and by geographical region
Total sales	$ 38,553	$ 51,088	$ 85,190	$ 97,518