Property, plant and equipment (Tables)

12 Months Ended

Dec. 31, 2021

Property, plant and equipment.

Schedule of reconciliation of property, plant and equipment

	Furniture and		Leasehold
	equipment		improvements		TMS devices		Total
Cost
Balance, December 31, 2019	$	175,416	$	183,103	$	1,792,984	$	2,151,503
Additions		—		—		383,200		383,200
Asset disposal		—		—		(50,093)		(50,093)
Balance, December 31, 2020		175,416		183,103		2,126,091		2,484,610
Additions		—		—		544,127		544,127
Additions through business combinations (note 5)		—		—		57,544		57,544
Asset disposal		(59,812)		(3,704)		(191,537)		(255,053)
Balance, December 31, 2021	$	115,604	$	179,399	$	2,536,225	$	2,831,228
Accumulated depreciation
Balance, December 31, 2019	$	83,408	$	5,291	$	396,473	$	485,172
Depreciation		28,768		25,593		258,154		312,515
Asset disposal		—		—		(4,413)		(4,413)
Balance, December 31, 2020		112,176		30,884		650,214		793,274
Depreciation		27,991		29,297		310,663		367,951
Asset disposal		(59,812)		(3,704)		(191,537)		(255,053)
Balance, December 31, 2021	$	80,355	$	56,477	$	769,340	$	906,172
Net book value
Balance, December 31, 2020	$	63,240	$	152,219	$	1,475,877	$	1,691,336
Balance, December 31, 2021		35,249		122,922		1,766,885		1,925,056