Share capital (Tables)

9 Months Ended

Sep. 30, 2022

Summary of Stock option award

						Weighted
				Range		average
				of		remaining
				exercise		contractual
	Number			price		life (in years)
Outstanding, December 31, 2021		6,428,000		$	1.81		3.86
Expired		(20,000	)		3.43		-
Cancelled		(458,000	)		2.02		-
Outstanding, September 30, 2022		5,950,000		$	1.79		3.00
Options exercisable		5,908,333		$	1.78		2.97

Summary of stock option-based compensation

	Three months				Nine months
	ended September 30,				ended September 30,
Employee expenses	2022		2021		2022		2021
Stock options and stock compensation granted in:
2015		-		142,316		86,749		556,331
2020		32,369		11,880		97,107		117,596
2021		-		20,250				1,208,209
2022		-				324,777
Total stock-based compensation expense recognized	$	32,369	$	174,446	$	508,633	$	1,882,136

Summary of stock option-based compensation expense

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2022		2021		2022		2021
Stock-based compensation pertaining to general and administrative	$	-	$	91,408	$	368,151	$	1,486,374
Stock-based compensation pertaining to research and development		32,369		83,038		140,482		395,762
Total	$	32,369	$	174,446	$	508,633	$	1,882,136