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Other Investments (Tables) | 12 Months Ended
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Dec. 31, 2015
Investments, All Other Investments [Abstract] |
Schedule Of Summary Of Investment |
|  | December 31, 2015 |  | December 31, 2014 |
Fair value at beginning of period |  | $ | 6,163 |  | $ | 20,990 |
Sale of Midas Gold Shares, net of costs to sell |  |  | (2,772) |  |  | (10,560) |
Loss during the period |  |  | (1,593) |  |  | (4,267) |
Fair value at end of period |  | $ | 1,798 |  | $ | 6,163 |
Midas Gold Shares held at the end of the period |  |  | 7,802,615 |  |  | 15,802,615 |

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- Definition A tabular disclosure of (a) the aggregate carrying amount of all cost-method investments; (b) the aggregate carrying amount of cost-method investments that the investor did not evaluate for impairment for cost-method investments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 325 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6872867&loc=d3e40691-111596 + Details
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