Stockholders' deficit (Tables)

6 Months Ended

Jun. 30, 2019

Equity [Abstract]

Warrants outstanding

	Six months ended June 30, 2019
Calculated stock price		$0.07 to $0.09
Risk free interest rate		1.81% to 2.58%
Expected life of warrants		36 to 60 months
expected volatility of underlying stock		169.8% to 186.7%
Expected dividend rate		0	%

A summary of all of the Company’s warrant activity during the period January 1, 2018 to June 30, 2019 is as follows:

	No. of shares			Exercise price per  share		Weighted average exercise price
Outstanding January 1, 2018		49,504,075			0.0033 to $.0.10	$	0.0690
Granted		48,295,833			0.10 to $0.12		0.1130
Forfeited/cancelled		—			—		—
Exercised		—			—		—
Outstanding December 31, 2018		97,799,908			$0.03 to $0.12	$	0.0910
Granted		19,235,183			$0.10 to $0.12		0.1188
Forfeited/cancelled		(300,000	)		$0.0033		(0.0033	)
Exercised		—			—		—
Outstanding June 30, 2019		116,735,091			$0.03 to $0.12	$	0.0954

The following table summarizes information about warrants outstanding at June 30, 2019:

	Warrants outstanding						Warrants exercisable
Exercise price	No. of shares		Weighted average remaining years		Weighted average exercise price		No. of shares		Weighted average exercise price
$0.03		21,704,075		0.73				21,704,075
$0.10		45,668,516		3.60				45,668,516
$0.12		49,362,500		2.35				49,362,500
		116,735,091		2.54	$	0.0954		116,735,091	$	0.0954

Options Outstanding

The following table summarizes information about options outstanding as of June 30, 2019:

	Options outstanding						Options exercisable
Exercise price	No. of shares		Weighted average remaining years		Weighted average exercise price		No. of shares		Weighted average exercise price
$0.12		480,000		0.34				480,000
		480,000		0.34	$	0.12		480,000	$	0.12