Share Capital (Tables)

3 Months Ended

Mar. 31, 2019

Equity [Abstract]

Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]

The following is a summary of stock option activity during the three months ended March 31, 2019 and the year ended December 31, 2018:

	Shares			Weighted Average Exercise Price per Share
Options outstanding, December 31, 2017		2,600,001		$	0.54
Options forfeited		(75,000	)	$	0.29
Options expired		(200,000	)	$	1.48
Options outstanding, March 31, 2019 and December 31, 2018		2,325,001		$	0.46

Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding and Exercisable [Table Text Block]

The following table summarizes information about stock options outstanding and exercisable as at March 31, 2019:

Expiry Date	Number Outstanding		Number Exercisable		Remaining Contractual Life (years)		Exercise Price
September 8, 2020		430,000		430,000		1.44	$	0.58
November 30, 2021		365,000		243,332		2.67	$	0.66
March 20, 2022		400,002		266,668		2.97	$	0.65
October 20, 2022		1,129,999		376,666		3.56	$	0.29
		2,325,001		1,316,666		2.91

Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other Than Options, Outstanding and Exercisable [Table Text Block]

The following table summarizes information about share purchase warrants outstanding as at March 31, 2019:

Expiry Date	Number Outstanding		Remaining Contractual Life (years)		Exercise Price
June 8, 2020		10,000,000		1.19	$	0.7831
July 25, 2019 (1)		6,317,700		0.32	C$	2.0000
November 18, 2021		8,000,000		2.64	$	0.6650
		24,317,700		1.44

(1) Non-tradable share purchase warrants.