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10. REVENUES (Details) - USD ($)
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Revenues $ 1,317,052 $ 1,189,595
Discounts and allowances (3,515) 0
Product Sales [Member]    
Revenues 1,302,363 1,187,465
Maintenance Fees [Member]    
Revenues 3,679 2,130
Professional Services [member]    
Revenues $ 14,525 $ 0