Shareholders' Equity (Tables)

6 Months Ended

Jun. 30, 2020

Shareholders' Equity

Schedule of Share-based Compensation, Stock Options, Activity

						Weighted
						average
		Weighted		Weighted		remaining
		average		average		contractual	Aggregate
	Number	exercise		grant date		term	intrinsic
	of shares	price		fair value		(in years)	value
Options outstanding as of January 1, 2020	94,349,035	$	0.10			7.6	$	—
Changes during the period:
Granted	18,800,000		0.02		0.02
Forfeited	(500,000)		0.04		0.03
Options outstanding at June 30, 2020	112,649,035	$	0.09			7.6	$	110,405
Exercisable options at June 30, 2020	68,036,535	$	0.13			6.8	$	42,305

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions

	June 30, 2020		June 30, 2019
Expected dividend yield	0	%	0	%
Expected volatility	83.95-86.60	%	75.40	%
Risk-free interest	0.29-0.49	%	1.76	%
Expected life in years	5.50-6.25		5.50

Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range

					Remaining
		Weighted			contractual
		average	Weighted		life (years	Weighted
Exercise		remaining	average		for	average
price	Options	contractual	exercise	Options	exercisable	exercise
(range) ($)	outstanding	life (years)	price ($)	exercisable	options)	price ($)
0.02-0.05	77,600,000	8.53	0.02	33,175,000	8.08	0.03
0.12-0.19	18,334,629	5.81	0.15	18,147,129	5.80	0.16
0.32	16,714,406	5.23	0.32	16,714,406	5.23	0.32
	112,649,035			68,036,535

Schedule of Stockholders' Equity Note, Warrants or Rights

			Balance	Warrants	Warrants	Balance
	Exercise		December 31,	Issued	Exercised	June 30,
Description	Price		2019	in 2020	in 2020	2020
July 2019 Investor Warrants	$	3.00	1,184,213	—	—	1,184,213
July 2019 Placement Agent Warrants	$	2.85	177,629	—	—	177,629
February 2020 Investor Warrants	$	2.20	—	2,810,136	(12,500)	2,797,636
February 2020 Placement Agent Warrants	$	2.55	—	449,623	—	449,623
			1,361,842	3,259,759	(12,500)	4,609,101