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GEOGRAPHIC AND SEGMENT INFORMATION | 12 Months Ended
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Dec. 31, 2015
Notes to Financial Statements |
Note 17. GEOGRAPHIC AND SEGMENT INFORMATION | International sales in 2015, 2014, and 2013 were 16.9%, 15.8%, and 17.5% of sales, respectively. Substantially all of these sales are denominated in U.S. dollars Although we have only one reporting segment, beginning in 2014, Management began analyzing revenue and other operating metrics across three operating segments.
Sales by Operating Category (in thousands) |  | 2015 |  |  | 2014 |  |  | 2013 |
Core |  | $ | 26,098 |  |  | $ | 24,322 |  |  | $ | 22,134 |
OEM |  |  | 2,116 |  |  |  | 3,150 |  |  |  | 1,484 |
J-Plasma |  |  | 1,306 |  |  |  | 209 |  |  |  | 42 |
Total |  | $ | 29,520 |  |  | $ | 27,681 |  |  | $ | 23,660 |

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