8. Stock Options and Warrants (Details-Warrants Outstanding) - Warrants [Member] - $ / shares	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018
Warrants outstanding, beginning balance	21,055,355	17,622,437
Warrants granted	11,180,084	18,238,688
Warrants exercised	(10,629,493)	(12,517,773)
Warrants cancelled	(8,540,862)	(2,287,997)
Warrants outstanding, ending balance	13,065,084	21,055,355
Weighted Average Exercise Price, Outstanding Beginning Balance	$ 0.09	$ 0.09
Weighted Average Exercise Price, Granted	0.07	0.05
Weighted Average Exercise Price, Exercised	0.05	0.05
Weighted Average Exercise Price, Cancelled	0.07	0.05
Weighted Average Exercise Price, Outstanding Ending Balance	$ 0.11	$ 0.09

Exercise price per share or per unit of warrants or rights outstanding.

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Number of warrants or rights outstanding.

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Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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Number of non-option equity instruments exercised by participants.

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Number of shares under non-option equity instrument agreements for which rights to exercise lapsed.

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