Schedule of Mineral Property Expenses (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	98 Months Ended	107 Months Ended
Feb. 28, 2013	Feb. 29, 2012	Aug. 31, 2012	Feb. 28, 2013
Community	$ 75	$ 21
Engineering expense	130	179
Environmental	0	24
Geochemistry and geophysics	49	34
Land and permitting	58	0
Project support	92	53
Wages and benefits	398	326
Mineral property expense	$ 802	$ 637	$ 43,200	$ 43,165

The charge against earnings in the period for known or estimated future costs arising from requirements to perform environmental remediation activities.

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+ Details