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Commitments and Contingencies (Details) (USD $)	1 Months Ended		3 Months Ended
	Jan. 31, 2013	Mar. 31, 2013 Third Party [Member]	Mar. 31, 2013 Affiliated Entity [Member]	Mar. 31, 2013 Minimum [Member]	Mar. 31, 2013 Maximum [Member]
Loss Contingencies [Line Items]
Percentage of royalty obligations				0.50%	6.00%
Accelerated payment	$ 5,000,000
Number of gold equivalent ounces	200,000
Operating Leased Assets [Line Items]
Annual lease payment			862,500
Amount of commitment			34,500,000
Minimum annual lease payments		57,600	880,500
Operating lease, future minimum payments			$ 30,700,000

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- Definition

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- Definition

Percentage Net Smelter Return Royalty.

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- Definition

The minimum amount the entity agreed to spend under the long-term purchase commitment.

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- Definition

Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 13

-Paragraph 16

-Subparagraph b(i)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.



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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.



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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

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-Paragraph 16

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

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-Paragraph 122

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.



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