7. Stockholders' Equity (Details - Warrant activity) - Warrants [Member]	9 Months Ended
	Sep. 30, 2016 $ / shares shares
Number of warrants
Warrants outstanding, beginning balance \| shares	6,898,560
Cashless exercises \| shares	(92,348)
Exchange of warrants \| shares	(6,451,613)
Exchange warrants issued \| shares	10,249,517
Warrants issued \| shares	24,541,946
Warrants outstanding, ending balance \| shares	35,146,062
Weighted average exercise price
Weighted average exercise price, warrants outstanding, beginning balance \| $ / shares	$ 1.83
Weighted average exercise price, cashless exercises \| $ / shares	0.23
Weighted average exercise price, exchange of warrants \| $ / shares	1.94
Weighted average exercise price, exchange of warrants issued \| $ / shares	0.45
Weighted average exercise price, warrants issued \| $ / shares	0.45
Weighted average exercise price, warrants outstanding, ending balance \| $ / shares	$ 0.44