Intangible assets (Tables)

12 Months Ended

Dec. 31, 2020

Intangible assets

Reconciliation of intangible assets

			Covenant
	Management		not
	service agreement		to complete		Total
Cost
Balance, December 31, 2018		—		—		—
Additions (note 5)		6,020,000		310,000		6,330,000
Balance, December 31, 2019		6,020,000		310,000		6,330,000
Additions		—		—		—
Balance, December 31, 2020	$	6,020,000	$	310,000	$	6,330,000
Accumulated amortization
Balance, December 31, 2018		—		—		—
Amortization		105,907		16,362		122,269
Balance, December 31, 2019		105,907		16,362		122,269
Amortization		401,333		61,999		463,332
Balance, December 31, 2020	$	507,240	$	78,361	$	585,601
Net book value
Balance, December 31, 2019	$	5,914,093	$	293,638	$	6,207,731
Balance, December 31, 2020		5,512,760		231,639		5,744,399