2. Summary of Significant Accounting Policies (Details) - shares	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Antidilutive shares excluded from EPS	51,086,769	78,081,038
Options [Member]
Antidilutive shares excluded from EPS	32,180,601	39,450,603
Warrants [Member]
Antidilutive shares excluded from EPS	6,281,536	25,941,062
Convertible Notes [Member]
Antidilutive shares excluded from EPS	12,624,632	12,689,373