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8. SEGMENT REPORTING (Details) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
Sales, net $ 4,741,711 $ 4,244,519 $ 13,564,508 $ 12,878,174
Cost of Sales 1,700,460 1,608,568 4,999,908 5,178,536
Gross Margin 3,041,251 2,635,951 8,564,600 7,699,638
Selling Expenses 1,169,765 1,166,705 3,521,452 3,396,553
Contribution Margin $ 1,871,486 $ 1,469,246 $ 5,043,148 $ 4,303,085
Percent of Sales 100.00% 100.00% 100.00% 100.00%
Direct Sales        
Sales, net $ 2,052,390 $ 1,767,638 $ 5,019,220 $ 5,150,223
Cost of Sales 633,116 541,918 1,328,828 1,556,335
Gross Margin 1,419,274 1,225,720 3,690,392 3,593,888
Selling Expenses 808,761 797,073 2,332,103 2,225,678
Contribution Margin $ 610,513 $ 428,647 $ 1,358,289 $ 1,368,210
Percent of Sales 43.30% 41.60% 37.00% 40.00%
Distributor Sales        
Sales, net $ 2,689,321 $ 2,476,881 $ 8,545,288 $ 7,727,951
Cost of Sales 1,067,344 1,066,650 3,671,080 3,622,201
Gross Margin 1,621,977 1,410,231 4,874,208 4,105,750
Selling Expenses 361,004 369,632 1,189,349 1,170,875
Contribution Margin $ 1,260,973 $ 1,040,599 $ 3,684,859 $ 2,934,875
Percent of Sales 56.70% 58.40% 63.00% 60.00%