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Note 2 - Cash, Investments, and Restricted Cash (Details) (USD $) | 12 Months Ended |  |  | 12 Months Ended | 3 Months Ended |  | 12 Months Ended
--- | --- | --- | --- | --- | --- | --- | ---
Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010 | Dec. 31, 2013 Typhoon Exploration Inc. [Member] | Dec. 31, 2013 Equity Shares [Member] | Dec. 31, 2012 Equity Shares [Member] | Dec. 31, 2013 Non-Current Investments Held Having Net Gain Position [Member] | Dec. 31, 2013 Non-Current Investments Held Having Net Loss Position [Member] | Dec. 31, 2013 Aurizon Mines Ltd [Member]
Note 2 - Cash, Investments, and Restricted Cash (Details) [Line Items] |  |  |  |  |  |  |  |  |  |
Cash, FDIC Insured Amount | $ 250,000 |  |  |  |  |  |  |  |  |
Cash, CDIC Insured Amount | 100,000 |  |  |  |  |  |  |  |  |
Long-term Investments | 7,019,000 | 9,614,000 |  |  |  |  |  |  |  |
Tax Basis of Investments, Cost for Income Tax Purposes | 10,000,000 | 8,100,000 |  |  |  |  |  |  |  |
Other than Temporary Impairment Losses, Investments |  |  |  |  |  | 3,000,000 | 1,200,000 |  |  |
Payments to Acquire Investments | 6,001,000 | 5,823,000 |  |  | 500,000 |  |  |  |  | 300,000
Cost Method Investments | 1,500,000 |  |  |  |  |  |  |  |  |
Proceeds from Sale of Long-term Investments | 1,700,000 |  |  |  |  |  |  |  |  |
Accumulated Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax | (2,552,000) | 2,059,000 | 835,000 | 1,462,000 |  |  |  | 3,100,000 | 56,000 |
Equity Method Investment, Ownership Percentage |  |  |  |  | 29.40% |  |  |  |  |
Equity Method Investments |  |  |  |  | 800,000 |  |  |  |  |
Investment Owned, at Fair Value |  |  |  |  | 1,100,000 |  |  |  |  |
Restricted Investments | $ 5,200,000 | $ 900,000 |  |  |  |  |  |  |  |

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- Definition Accumulated appreciation or loss, net of tax, in value of the total of available-for-sale securities at the end of an accounting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=28358780&loc=SL7669686-108580 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=28358780&loc=d3e637-108580 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14 -URI http://asc.fasb.org/extlink&oid=28358780&loc=d3e681-108580 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 10A -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=28358780&loc=SL7669646-108580 + Details
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