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PATENTS (Details) - Finite-lived Intangible Assets Amortization Expense - USD ($)
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Dec. 31, 2019
Dec. 31, 2018
Finite-lived Intangible Assets Amortization Expense [Abstract]            
Amortization expense $ 451 $ 1,455 $ 903 $ 2,269 $ 4,558 $ 4,536