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1. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) - USD ($)
3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Total revenue $ 2,486,896 $ 1,961,787
Product sales revenue    
Total revenue 2,478,521 1,911,537
Royalty revenue    
Total revenue $ 8,375 $ 50,250