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Exploration Costs (Details) (USD $)
3 Months Ended 9 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2012
Jun. 30, 2011
Exploration Costs (Textual) [Abstract]        
Lease expirations and leasehold impairments charged to exploration costs $ 14,916 $ 305,156 $ 314,277 $ 455,486
Costs related to exploratory dry holes $ 14,225 $ 112,899 $ 69,922 $ 540,026