Consolidated Statements of Changes in Shareholders' Equity - USD ($) $ in Thousands	Share capital	Warrants	Contributed surplus.	Contributed surplus - options	Contributed surplus - units.	Deficit	Total
Beginning Balance at Nov. 30, 2018	$ 164,069	$ 2,253	$ 122	$ 19,076	$ 1,489	$ (154,807)	$ 32,202
Beginning Balance (Shares) at Nov. 30, 2018	131,585,612
Exercise of options	$ 1,123			(915)			208
Exercise of options (Shares)	1,725,776
Exercise of warrants	$ 12,166	$ (2,253)					$ 9,913
Exercise of warrants (Shares)	6,521,740						6,521,740
Restricted Share Units	$ 424				(424)
Restricted Share Units (Shares)	412,501
Deferred share units	$ 189				(189)
Deferred share units (Shares)	182,132
Stock-based compensation				2,962	883		$ 3,845
Earnings (Loss) for the year						(27,905)	(27,905)
Ending Balance at Nov. 30, 2019	$ 177,971		122	21,123	1,759	(182,712)	18,263
Ending Balance (Shares) at Nov. 30, 2019	140,427,761
Exercise of options	$ 1,133			(916)			217
Exercise of options (Shares)	3,297,588
Restricted Share Units	$ 642				(642)
Restricted Share Units (Shares)	412,501
Stock-based compensation				3,096	468		3,564
Earnings (Loss) for the year						161,767	161,767
Ending Balance at Nov. 30, 2020	$ 179,746		122	23,303	1,585	(20,945)	183,811
Ending Balance (Shares) at Nov. 30, 2020	144,137,850
Exercise of options	$ 1,074			(658)			416
Exercise of options (Shares)	871,961
Stock-based compensation				3,345	127		3,472
Earnings (Loss) for the year						(21,660)	(21,660)
Ending Balance at Nov. 30, 2021	$ 180,820		$ 122	$ 25,990	$ 1,712	$ (42,605)	$ 166,039
Ending Balance (Shares) at Nov. 30, 2021	145,009,811