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Commitments and Contingencies (Details Narrative) (USD $) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011 | Oct. 16, 2015
Commitments and contingencies |  |  |  |
Property Rentals | $ 805,000 |  |  |
Property Rental Payments Reimbursable by Joint Venture Partners | 777,000 |  |  |
Total Rent Expense for Offices in Nevada Peru and Mexico |  | 61,000 | 55,000 |
Minimum Rent Payments Due for Wheat Ridge, CO Office |  |  |  | $ 73,000

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