Schedule of Plant and Equipment (Details) - USD ($) $ in Thousands	Aug. 31, 2015	Nov. 30, 2014
Cost	$ 3,704	$ 3,315
Accumulated amortization	(3,194)	(2,900)
Net	510	415
Furniture and equipment [Member] | British Columbia, Canada [Member]
Cost	46	46
Accumulated amortization	(21)	(15)
Net	25	31
Leasehold improvements [Member] | Antioquia,Colombia [Member]
Cost	73
Accumulated amortization	(7)
Net	66
Leasehold improvements [Member] | British Columbia, Canada [Member]
Cost	32	32
Accumulated amortization	(18)	(13)
Net	14	19
Machinery and equipment [Member] | Antioquia,Colombia [Member]
Cost	206
Accumulated amortization	(16)
Net	190
Machinery and equipment [Member] | Alaska, USA [Member]
Cost	2,887	2,833
Accumulated amortization	(2,773)	(2,579)
Net	114	254
Vehicles [Member] | Antioquia,Colombia [Member]
Cost	52
Accumulated amortization	(4)
Net	48
Vehicles [Member] | Alaska, USA [Member]
Cost	275	275
Accumulated amortization	(255)	(218)
Net	20	57
Computer hardware and software | Antioquia,Colombia [Member]
Cost	1
Accumulated amortization	0
Net	1
Computer hardware and software | British Columbia, Canada [Member]
Cost	101	98
Accumulated amortization	(69)	(44)
Net	32	54
Computer hardware and software | Alaska, USA [Member]
Cost	31	31
Accumulated amortization	(31)	(31)
Net	$ 0	$ 0