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Note 9 - Stockholders' Equity (Details) - USD ($) |  |  | 1 Months Ended | 3 Months Ended | 6 Months Ended
--- | --- | --- | --- | --- | ---
Mar. 09, 2015 | Jan. 01, 2015 | May. 31, 2015 | Jun. 30, 2015 | Jun. 30, 2014 | Jun. 30, 2015 | Jun. 30, 2014
Note 9 - Stockholders' Equity (Details) [Line Items] |  |  |  |  |  |  |
Allocated Share-based Compensation Expense |  |  |  | $ 300,000 | $ 200,000 | $ 500,000 | $ 400,000
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized |  |  |  | 3,600,000 |  | $ 3,600,000 |
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition |  |  |  |  |  | 2 years 292 days |
Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Stock Options |  |  |  | 0 | $ 0 | $ 0 | $ 0
Proceeds from Stock Options Exercised |  |  |  | $ 0 |  | $ 0 |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross (in Shares) |  |  |  | 0 | 0 | 0 | 0
Chief Executive Officer [Member] |  |  |  |  |  |  |
Note 9 - Stockholders' Equity (Details) [Line Items] |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross (in Shares) | 600,000 |  |  |  |  |  |
Deferred Compensation Arrangement with Individual, Maximum Contractual Term | 3 years |  |  |  |  |  |
Annual Salary to be Paid to Employee | $ 1 |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period | 3 years |  |  |  |  |  |
Deferred Compensation Arrangement with Individual, Award Value |  |  | $ 2,500,000 |  |  |  |
D.A. Davidson & Co. [Member] |  |  |  |  |  |  |
Note 9 - Stockholders' Equity (Details) [Line Items] |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number (in Shares) |  |  |  | 900,000 |  | 900,000 |
Long Term Incentive Plan [Member] |  |  |  |  |  |  |
Note 9 - Stockholders' Equity (Details) [Line Items] |  |  |  |  |  |  |
Allocated Share-based Compensation Expense |  |  |  | $ 100,000 |  | $ 200,000 |
Percentage of Incentive Plan Based on Service Completion |  | 50.00% |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Award Requisite Service Period |  | 3 years |  |  |  |  |
Percentage of Incentive Plan Based on Shareholder Return |  | 50.00% |  |  |  |  |
Incentive Plan, Term for Shareholder Return |  | 3 years |  |  |  |  |

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