Consolidated Statements of Changes in Shareholders' Equity - USD ($) $ in Thousands	Total	Share capital [Member]	Warrant [Member]	Contributed Surplus [Member]	Contributed surplus - options [Member]	Contributed surplus - units [Member]	Deficit [Member]
Beginning Balance at Nov. 30, 2015	$ 50,430	$ 136,040	$ 2,163	$ 124	$ 17,841	$ 1,164	$ (106,902)
Beginning Balance (Shares) at Nov. 30, 2015		104,796,421
Exercise of options	0	$ 56	0	0	(56)	0	0
Exercise of options (Shares)		143,889
Restricted Share Units	(29)	$ 34	0	0	0	(63)	0
Restricted Share Units (Shares)		108,399
Deferred Share Units	0	$ 218	0	0	0	(218)	0
Deferred Share Units (Shares)		218,795
Stock-based compensation	544	$ 0	0	0	326	218	0
Loss for the period	(7,597)	0	0	0	0	0	(7,597)
Ending Balance at Aug. 31, 2016	43,348	$ 136,348	2,163	124	18,111	1,101	(114,499)
Ending Balance (Shares) at Aug. 31, 2016		105,267,504
Beginning Balance at Nov. 30, 2016	46,154	$ 136,357	2,163	124	18,134	1,140	(111,764)
Beginning Balance (Shares) at Nov. 30, 2016		105,286,469
Exercise of options	0	$ 54	0	0	(54)	0	0
Exercise of options (Shares)		171,458
Restricted Share Units	(90)	$ 83	0	0	0	(173)	0
Restricted Share Units (Shares)		209,198
Stock-based compensation	603	$ 0	0	0	312	291	0
Loss for the period	(14,378)	0	0	0	0	0	(14,378)
Ending Balance at Aug. 31, 2017	$ 32,289	$ 136,494	$ 2,163	$ 124	$ 18,392	$ 1,258	$ (126,142)
Ending Balance (Shares) at Aug. 31, 2017		105,667,125