Commitments and Contingencies - Additional Information (Detail)	0 Months Ended	9 Months Ended
Jun. 27, 2012 USD ($)	Sep. 30, 2012 Breakwater Resources Limited CAD
Commitments and Contingencies Disclosure [Line Items]
Production bonus payable, amount		500,000
Production bonus payable, payment period		30 days
Percentage of net smelter return royalty payable		1.00%
Periodic Payment For Services From Related Party	$ 2,400

Minimum amount of other commitment not otherwise specified in the taxonomy. Excludes commitments explicitly modeled in the taxonomy, including but not limited to, long-term and short-term purchase commitments, recorded and unrecorded purchase obligations, supply commitments, registration payment arrangements, leases, debt, product warranties, guarantees, environmental remediation obligations, and pensions.

No definition available.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant