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10. SHAREHOLDERS' EQUITY (Details 2) - Warrant - $ / shares
 3 Months Ended 12 Months Ended
Mar. 31, 2020
Dec. 31, 2019
Outstanding Warrants, Beginning Balance 17,240,523 26,550,611
Granted, Warrants 1,441,667 1,300,000
Exercised, Warrants (83,333) 0
Expired, Warrants (1,799,999) (10,610,088)
Outstanding Warrants, Ending Balance 16,798,858 17,240,523
Outstanding Weighted Average Exercise Price, Beginning balance $ 0.39 $ 0.34
Granted, Weighted Average Exercise Price 0.12 0.11
Exercised, Weighted Average Exercise Price (0.69) 0.00
Expired, Weighted Average Exercise Price (0.47) (0.23)
Outstanding Weighted Average Exercise Price, Ending balance $ 0.36 $ 0.39