Property, plant and equipment

12 Months Ended

Dec. 31, 2021

Property, plant and equipment.

Property, plant and equipment

6. 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