Schedule of Plant and Equipment (Details) (USD $) In Thousands, unless otherwise specified	May 31, 2013	Nov. 30, 2012
Net	$ 1,615	$ 1,947
Alaska, USA [Member]
Cost	3,235	3,063
Accumulated amortization	(1,620)	(1,116)
Net	1,615	1,947
Furniture and equipment [Member]
Cost	41
Accumulated amortization	(1)
Net	40
Leasehold improvements [Member]
Cost	30
Accumulated amortization	(1)
Net	29
Machinery and equipment [Member] | Alaska, USA [Member]
Cost	2,832	2,831
Accumulated amortization	(1,479)	(1,007)
Net	1,353	1,824
Vehicles [Member] | Alaska, USA [Member]
Cost	224	201
Accumulated amortization	(107)	(81)
Net	117	120
Computer hardware and software
Cost	77
Accumulated amortization	(4)
Net	73
Computer hardware and software | Alaska, USA [Member]
Cost	31	31
Accumulated amortization	(28)	(28)
Net	$ 3	$ 3