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7. SEGMENT REPORTING (Details) - USD ($)	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Sales, net	$ 4,998,786	$ 4,532,619
Cost of sales	1,718,150	1,642,375
Gross margin	3,280,636	2,890,244
Selling expenses	1,627,039	1,437,055
Contribution margin	$ 1,653,597	$ 1,453,189
Percent of sales	100.00%	100.00%
Direct Sales
Sales, net	$ 1,720,177	$ 1,550,155
Cost of sales	343,439	388,184
Gross margin	1,376,738	1,161,971
Selling expenses	1,074,371	986,752
Contribution margin	$ 302,367	$ 175,219
Percent of sales	34.40%	34.20%
Distributor Sales
Sales, net	$ 3,278,609	$ 2,982,464
Cost of sales	1,374,711	1,254,191
Gross margin	1,903,898	1,728,273
Selling expenses	552,668	450,303
Contribution margin	$ 1,351,230	$ 1,277,970
Percent of sales	65.60%	65.80%

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