Property, plant and equipment (Tables)

12 Months Ended

Dec. 31, 2022

Property, plant and equipment.

Schedule of reconciliation of property, plant and equipment

	Furniture and		Leasehold
	equipment		improvements		TMS devices		Total
Cost
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(a))		—		—		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
Additions		—		33,866		1,496,254		1,530,120
Additions through business combinations (note 5(b))		—		131,071		697,978		829,049
Asset disposal		—		—		(74,184)		(74,184)
Balance, December 31, 2022	$	115,604	$	344,336	$	4,656,273	$	5,116,213
Accumulated depreciation
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
Depreciation		23,119		39,064		502,421		564,604
Asset disposal		—		—		(74,184)		(74,184)
Balance, December 31, 2022	$	103,474	$	95,541	$	1,197,577	$	1,396,592
Net book value
Balance, December 31, 2021	$	35,249	$	122,922	$	1,766,885	$	1,925,056
Balance, December 31, 2022		12,130		248,795		3,458,696		3,719,621