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8. INTANGIBLE ASSETS (Tables)
3 Months Ended
Mar. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract]  
Finite-lived intangible assets
    March 31, 2020     December 31, 2019  
          Accumulated                 Accumulated        
    Cost     Amortization     Net     Cost     Amortization     Net  
Patent   $ 510,310     $ (510,310 )   $ -     $ 510,310     $ (510,310 )   $ -  
License     2,000,000       (84,744 )     1,915,256       1,500,000       (48,876 )     1,451,124  
Software and Other     64,464       (46,268 )     18,196       64,464       (44,394 )     20,070  
Total   $ 2,574,774     $ (641,322 )   $ 1,933,452     $ 2,074,774     $ (603,580 )   $ 1,471,194  
Estimated remaining amortization expense
Remainder of 2020   $ 123,717  
2021     164,956  
2022     162,541  
2023     157,461  
2024     157,461  
Thereafter     1,167,316  
Total   $ 1,933,452