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Note 3 - Option Agreement (Details Textual) $ / item in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2016 USD ($) | Dec. 31, 2015 USD ($) | Dec. 31, 2012 USD ($) | Mar. 20, 2012 $ / item
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners |  |  |  | 5.00%
Noncontrolling Interest, Ownership Percentage by Parent | 100.00% |  |  | 96.00%
Increase In Shares Covered By Option |  |  |  | 10.00%
Open Option Contracts Written, Exercise Price | $ / item |  |  |  | 1
Marketing Expense | $ 350,000 | $ 242,000 |  |
Other Liabilities, Noncurrent | 18,000 | 18,000 |  |
Option Expense [Member] |  |  |  |
Marketing Expense |  |  | $ 18,000 |
Other Liabilities, Noncurrent | $ 18,000 | $ 18,000 |  |

X
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X
- Definition Expenditures for planning and executing the conception, pricing, promotion, and distribution of ideas, goods, and services. Costs of public relations and corporate promotions are typically considered to be marketing costs. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.4) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
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- Definition The exercise price of the open option contracts written on the investment. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 320 -Section S99 -Paragraph 3 -Subparagraph (SX 210.12-12B.Column C) -URI http://asc.fasb.org/extlink&oid=50485924&loc=d3e611197-123010 + Details
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- Definition Amount of liabilities classified as other, due after one year or the normal operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.24) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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