Schedule of Mineral Property Expenses (Details) - USD ($) $ in Thousands	12 Months Ended
	Nov. 30, 2017	Nov. 30, 2016	Nov. 30, 2015
Mineral property expense	$ 15,100	$ 5,037	$ 4,167
Alaska, USA [Member]
Community	318	299	126
Drilling	5,074	712	698
Engineering	1,840	699	441
Environmental	299	314	88
Geochemistry and geophysics	357	82	70
Land and permitting	795	426	421
Other income	(25)	(34)	(209)
Project support	3,836	1,254	1,411
Wages and benefits	$ 2,606	$ 1,285	$ 1,122