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BUSINESS SEGMENTS (Details) - USD ($) | 12 Months Ended
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Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Sales by geography |  |  |
Total sales | $ 34,493,838 | $ 29,826,636 | $ 29,552,200
UNITED STATES |  |  |
Sales by geography |  |  |
Total sales | 27,015,712 | 26,308,246 | 23,029,976
Long-lived assets |  |  |
Long-lived assets | 11,215,583 | 11,930,293 | 11,282,192
North and South America Excluding United States |  |  |
Sales by geography |  |  |
Total sales | 6,380,745 | 2,741,518 | 5,668,785
Other International |  |  |
Sales by geography |  |  |
Total sales | 1,097,381 | 776,872 | 853,439
International |  |  |
Long-lived assets |  |  |
Long-lived assets | $ 137,619 | $ 161,744 | $ 185,869

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