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15. SEGMENT REPORTING (Tables)
12 Months Ended
Dec. 31, 2018
Segment Reporting [Abstract]  
Segment reporting
    Twelve Months Ended December 31,  
    Direct Sales     Distributor Sales     Total  
    2018     2017     2018     2017     2018     2017  
                                     
Sales, net   $ 9,115,074     $ 8,340,366     $ 13,964,665     $ 12,513,161     $ 23,079,739     $ 20,853,527  
Cost of Sales     2,430,148       2,237,599       5,868,092       5,734,077       8,298,240       7,971,676  
Gross Margin     6,684,926       6,102,767       8,096,573       6,779,084       14,781,499       12,881,851  
Selling Expenses     4,255,324       3,854,772       2,134,665       1,805,840       6,389,989       5,660,612  
Contribution Margin   $ 2,429,602     $ 2,247,995     $ 5,961,908     $ 4,973,244     $ 8,391,510     $ 7,221,239  
Percent of Sales   39.5%     40.0%     60.5%     60.0%     100.0%     100.0%