Segment reporting (Tables)

12 Months Ended

Oct. 31, 2022

Disclosure of operating segments [abstract]

Schedule of geographical areas

The following is a summary of the Company’s geographical information:

	Canada		United States		Germany		Other		Total
Revenues
Year ended October 31, 2022	$	4.1	$	9.3	$	—	$	—	$	13.4
Year ended October 31, 2021	3.0		4.3		—		—		7.3
Year ended October 31, 2020	0.8		—		—		—		0.8
Non-current assets
As at October 31, 2022	26.8		161.4		10.7		2.5		201.4
As at October 31, 2021	15.5		37.9		—		—		53.4
As at October 31, 2020	$	3.4	$	6.1	$	—	$	—	$	9.5