Net loss per common share (Details) - USD ($)	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Net Loss Per Common Share Details
Stock options		$ 480,000
Warrants to purchase shares of common stock	515,561,379	120,610,091
Convertible notes	4,964,723,277	94,933,731
Total	$ 5,480,284,656	$ 216,023,822