Loss per share, Weighted Average Shares Outstanding (Details) - $ / shares	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Weighted Average Shares Outstanding [Abstract]
Weighted average shares outstanding (in shares)	378,128,645	203,588,106
Warrant exercise price (in dollars per share)	$ 0.01
Common Shares [Member]
Weighted Average Shares Outstanding [Abstract]
Weighted average shares outstanding (in shares)	359,880,132	203,588,106
Common Shares Issuable Assuming Exercise of Nominally Priced Warrants [Member]
Weighted Average Shares Outstanding [Abstract]
Weighted average shares outstanding (in shares)	18,248,513	0