Interim Consolidated Statements of Changes in Shareholders' Equity - USD ($) $ in Thousands	Share capital [Member]	Warrants [Member]	Contributed surplus [Member]	Contributed surplus - options [Member]	Contributed surplus - units [Member]	Deficit [Member]	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	$ 28	0	0	(28)	0	0	0
Exercise of options (Shares)	44,230
Restricted Share Units	$ 424	0	0	0	(424)	0	0
Restricted Share Units (Shares)	412,501
Stock-based compensation	$ 0	0	0	1,586	353	0	1,939
Earnings (Loss) for the period	0	0	0	0	0	(4,336)	(4,336)
Ending Balance at Feb. 28, 2019	$ 164,521	2,253	122	20,634	1,418	(159,143)	29,805
Ending Balance (Shares) at Feb. 28, 2019	132,042,343
Beginning Balance at Nov. 30, 2019	$ 177,971	0	122	21,123	1,759	(182,712)	18,263
Beginning Balance (Shares) at Nov. 30, 2019	140,427,761
Exercise of options	$ 6	0	0	(6)	0	0	0
Exercise of options (Shares)	19,514
Restricted Share Units	$ 330	0	0	0	(330)	0	0
Restricted Share Units (Shares)	212,501
Stock-based compensation	$ 0	0	0	1,155	41	0	1,196
Earnings (Loss) for the period	0	0	0	0	0	171,179	171,179
Ending Balance at Feb. 29, 2020	$ 178,307	$ 0	$ 122	$ 22,272	$ 1,470	$ (11,533)	$ 190,638
Ending Balance (Shares) at Feb. 29, 2020	140,659,776