Subsequent event (Details) - USD ($)			12 Months Ended
	Dec. 07, 2023	Dec. 01, 2023	Nov. 30, 2023	Nov. 30, 2022	Nov. 30, 2021
RSUs
Subsequent Event [Line Items]
Granted units			4,640,089	1,359,349	0
Subsequent Event
Subsequent Event [Line Items]
Stock issued in lieu of salaries		$ 155,000
Stock issued in lieu of director fees		$ 82,750
Subsequent Event | Employee Stock Option [Member] | Director
Subsequent Event [Line Items]
Granted (in shares)	300,000
Subsequent Event | Employee Stock Option [Member] | Employees And Consultants
Subsequent Event [Line Items]
Granted (in shares)	2,475,000
Subsequent Event | RSUs | Director
Subsequent Event [Line Items]
Granted units	600,000
Subsequent Event | RSUs | Board of Directors and senior management
Subsequent Event [Line Items]
Granted (in shares)		358,826
Subsequent Event | RSUs | Executives And Employees
Subsequent Event [Line Items]
Granted units	1,566,940
Subsequent Event | RSUs | Employees And Consultants
Subsequent Event [Line Items]
Granted units	2,315,000
Subsequent Event | RSUs | Employees And Consultants | Tranche One
Subsequent Event [Line Items]
Vesting rights percentage	0.33%
Subsequent Event | RSUs | Employees And Consultants | Tranche Two
Subsequent Event [Line Items]
Vesting rights percentage	0.33%
Subsequent Event | RSUs | Employees And Consultants | Tranche Three
Subsequent Event [Line Items]
Vesting rights percentage	0.33%
Subsequent Event | DSUs. | Board of Directors and senior management
Subsequent Event [Line Items]
Granted (in shares)		194,819