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, 2017
Dec. 31, 2016
Options outstanding, beginning balance 23,474,256 21,535,148
Options granted 12,561,852 2,250,527
Options exercised (449,754) 0
Options cancelled (188,679) (311,419)
Options outstanding, ending balance 35,397,675 23,474,256
Weighted Average Exercise Price, outstanding beginning balance $ 0.30 $ 0.20
Weighted Average Exercise Price, granted 0.12 0.46
Weighted Average Exercise Price, exercised 0.05
Weighted Average Exercise Price, cancelled 0.53 0.72
Weighted Average Exercise Price, outstanding ending balance $ 0.23 $ 0.30