Sharebased payments (Details)	3 Months Ended
	Mar. 31, 2021 USD ($) $ / shares shares
Forfeited or expired	(10,775,215)
Nonemployee Common stock warrants - Service and performance conditions [Member]
Shares Outstanding, Beginning	11,916,503
Forfeited or expired	(1,266,503)
Shares Outstanding, Ending	10,650,000
Shares Exercisable, Ending	10,650,000
Weighted Average Exercise Price outstanding, Beginning | $ / shares	$ 0.05
Weighted Average Exercise Price forfeited and expired | $ / shares	0.30
Weighted average exercise price outstanding, Ending | $ / shares	0.02
Weighted average exercise price exercisable, Ending | $ / shares	$ 0.02
Outstanding, Begining Balance	1 year 10 months 24 days
Outstanding, Ending Balance	2 years 3 months 18 days
Exercisable, Ending	2 years 3 months 18 days
Aggregate intrinsic value outstanding beginning | $	$ 10,500
Aggregate intrinsic value outstanding ending | $	472,700
Aggregate intrinsic value exercisable ending | $	$ 472,700