Property, plant and equipment

12 Months Ended

Dec. 31, 2020

Property, plant and equipment

Property, plant and equipment

6.           Property, plant and equipment:

	Furniture
	and		Leasehold		TMS
	equipment		improvements		devices		Total
Cost
Balance, December 31, 2018	$	203,318	$	3,704	$	1,000,426	$	1,207,448
Additions		—		179,399		847,883		1,027,282
Asset disposal		(27,902)		—		(55,325)		(83,227)
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
Accumulated depreciation
Balance, December 31, 2018	$	54,685	$	604	$	240,693	$	295,982
Depreciation		28,723		4,687		157,184		190,594
Asset disposal		—		—		(1,404)		(1,404)
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
Net book value
Balance, December 31, 2019	$	92,008	$	177,812	$	1,396,511	$	1,666,331
Balance, December 31, 2020		63,240		152,219		1,475,877		1,691,336