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8. Stock Options and Warrants (Details-Warrants Outstanding) - Warrants [Member]
3 Months Ended
Mar. 31, 2020
$ / shares
shares
Warrants outstanding, beginning balance | shares 13,065,084
Warrants exercised | shares (1,155,000)
Warrants cancelled | shares (5,810,200)
Warrants outstanding, ending balance | shares 6,749,883
Weighted Average Exercise Price, Outstanding Beginning Balance $ 0.11
Weighted Average Exercise Price, Granted 0.04
Weighted Average Exercise Price, Exercised 0.05
Weighted Average Exercise Price, Cancelled 0.05
Weighted Average Exercise Price, Outstanding Ending Balance $ 0.17