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Note 3 - Option Agreement (Details Textual) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2015 USD ($) | Dec. 31, 2014 USD ($) | Dec. 31, 2012 USD ($) | Mar. 20, 2012 $ / item
Option Expense [Member] |  |  |  |
Other Liabilities, Noncurrent | $ 18,000 | $ 18,000 |  |
Marketing Expense |  |  | $ 18,000 |
Other Liabilities, Noncurrent | 18,000 | 18,000 |  |
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners |  |  |  | 5.00%
Noncontrolling Interest, Ownership Percentage by Parent |  |  |  | 96.00%
Increase In Shares Covered By Option |  |  |  | 10.00%
Open Option Contracts Written, Exercise Price | $ / item |  |  |  | 1,000,000
Marketing Expense | $ 242,000 | $ 271,000 |  |

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- 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=26872669&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 Aggregate carrying amount, as of the balance sheet date, of noncurrent obligations not separately disclosed in the balance sheet. Noncurrent liabilities are expected to be paid 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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