Annual report pursuant to Section 13 and 15(d)

8. Stock Options and Warrants (Details-Options Outstanding)

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8. Stock Options and Warrants (Details-Options Outstanding) - Options [Member] - $ / shares
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Options outstanding, beginning balance 35,397,675 23,474,256
Options granted 2,083,335 12,561,852
Options exercised (179,710) (449,754)
Options cancelled (2,000,000) (188,679)
Options outstanding, ending balance 35,301,300 35,397,675
Weighted Average Exercise Price, Outstanding Beginning Balance $ 0.23 $ 0.30
Weighted Average Exercise Price, Granted 0.18 0.12
Weighted Average Exercise Price, Exercised 0.07 0.05
Weighted Average Exercise Price, Forfeited 0.28 0.53
Weighted Average Exercise Price, Outstanding Ending Balance $ 0.22 $ 0.23