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Accrued Expenses (Details) (USD $)	Dec. 31, 2012	Dec. 31, 2011
Accrued Expenses [Abstract]
Tax indemnification accrual (Note 22)	$ 4,007,024	$ 3,861,340
Accrued reclamation bonding obligations	1,350,000
Other accrued expenses	2,003,535	290,070
Total	$ 7,360,559	$ 4,151,410

Carrying amount as of the balance sheet date of the unpaid sum of the known and estimated amounts payable to satisfy all currently due domestic and foreign income tax obligations.

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- Definition

Carrying value as of the balance sheet date of obligations incurred through that date and payable arising from transactions not otherwise specified in the taxonomy. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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