2. Summary of Significant Accounting Policies (Details) - shares	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Antidilutive shares excluded from EPS	57,953,780	39,852,940
Options [Member]
Antidilutive shares excluded from EPS	35,575,677	23,624,256
Warrants [Member]
Antidilutive shares excluded from EPS	17,420,770	12,451,892
Convertible Notes [Member]
Antidilutive shares excluded from EPS	4,957,333	3,776,792