14. Stockholders' Equity (Details - Warrant activity) - $ / shares	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Number of warrants
Warrants outstanding, beginning balance	7,351,699	12,568,369
Warrants issued	567,166	0
Warrants exercised	(7,107,765)	(5,216,670)
Warrants forfeited	(29,190)
Warrants outstanding, ending balance	781,910	7,351,699
Weighted Average Exercise Price
Weighted Average Exercise Price, Warrants outstanding, beginning balance	$ 0.26	$ 1.00
Weighted Average Exercise Price, Warrants issued	1.50
Weighted Average Exercise Price, Warrants exercised	0.24	1.00
Weighted Average Exercise Price, Warrants forfeited	0.24
Weighted Average Exercise Price, Warrants outstanding, ending balance	$ 1.36	$ 0.26
custom:AverageRemainingContractualTermAbstract
Average Remaining Contractual Term, Warrants outstanding	2 years 3 months	9 months
Average Remaining Contractual Term, Warrants issued	2 years 4 months 17 days