Schedule of Common Shares Issued and Outstanding (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	May 31, 2017	Nov. 30, 2016
Number of Common Shares	105,286,469	104,796,421
Ascribed Value Common Shares	$ 136,357	$ 136,040
Exercise of options (shares)	58,822	162,854
Exercise of options	$ 23	$ 65
Restricted Share Units (Shares)	209,198	108,399
Restricted Share Units	$ 83	$ 34
Deferred Share Units (Shares)		218,795
Deferred Share Units		$ 218
Number of Common Shares	105,554,489	105,286,469
Ascribed Value Common Shares	$ 136,463	$ 136,357