Schedule of Mineral Property Expenses (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	May 31, 2019	May 31, 2018	May 31, 2019	May 31, 2018
Mineral property expense	$ 2,906	$ 2,475	$ 4,441	$ 3,606
Alaska, USA [Member]
Community	146	154	264	244
Drilling	173	180	173	180
Engineering	303	186	624	505
Environmental	136	81	271	169
Geochemistry and geophysics	593	591	758	646
Land and permitting	174	166	360	359
Project support	778	601	1,004	677
Other income	0	(2)	(1)	(20)
Wages and benefits	$ 603	$ 518	$ 988	$ 846