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Significant Customers & Geographical Information (Details) (USD $)
3 Months Ended 9 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2014
Sep. 30, 2013
Sales by product and by geographical region        
Total sales $ 2,535,098 $ 2,444,195 $ 7,662,864 $ 7,211,973
United States
       
Sales by product and by geographical region        
Total sales 1,039,153 1,526,608 3,434,171 3,907,560
Canada
       
Sales by product and by geographical region        
Total sales 30,548 119,594 100,321 241,937
Other Foreign
       
Sales by product and by geographical region        
Total sales 1,465,397 797,993 4,128,372 3,062,476
Instruments
       
Sales by product and by geographical region        
Total sales 413,914 491,179 1,938,293 1,760,079
Handpieces
       
Sales by product and by geographical region        
Total sales 2,090,580 1,927,391 5,608,776 5,328,751
Other
       
Sales by product and by geographical region        
Total sales $ 30,604 $ 25,625 $ 115,795 $ 123,143