Schedule of Mineral Property Expenses (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	May 31, 2017	May 31, 2016	May 31, 2017	May 31, 2016
Mineral property expense	$ 1,297	$ 457	$ 1,936	$ 990
Alaska, USA [Member]
Community	78	67	134	122
Drilling	90	0	90	0
Engineering	154	46	423	219
Environmental	59	15	59	23
Geochemistry and geophysics	5	1	5	13
Land and permitting	348	111	452	209
Project support	287	67	334	106
Wages and benefits	$ 276	$ 150	$ 439	$ 298