Share capital (Tables)

6 Months Ended

Jun. 30, 2022

Summary of Stock option award

			Outstanding		Weighted
			Weighted		average
			average		remaining
			exercise		contractual
	Number		Price		life (in years)
Outstanding, December 31, 2021		6,428,000	$	1.81		3.86
Expired / Cancelled		-		-		-
Granted		-		-		-
Outstanding, June 30, 2022		6,428,000	$	1.81		3.36
Options exercisable		6,373,833	$	1.80		3.32

Summary of stock option-based compensation

	Three months				Six months
	ended June 30,				ended June 30,
Employee expenses	2022		2021		2022		2021
Stock options and compensation granted in:
2015		24,482		184,827		86,749		414,015
2020		32,369		52,858		64,738		105,716
2021		-		1,187,959		-		1,187,959
2022		324,777		-		324,777		-
Total stock-based compensation expense recognized	$	381,628	$	1,425,644	$	476,264	$	1,707,690

Summary of stock option-based compensation expense

	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2022		2021		2022		2021
Stock-based compensation pertaining to general and administrative	$	337,018	$	1,280,372	$	368,151	$	1,394,966
Stock-based compensation pertaining to research and development		44,610		145,272		108,113		312,724
Total	$	381,628	$	1,425,644	$	476,264	$	1,707,690