Note 12 - Income Taxes (Policies)	6 Months Ended
Note 12 - Income Taxes (Policies)	Jun. 30, 2015
Income Tax Disclosure [Abstract]
Income Tax, Policy [Policy Text Block]	We provide for income taxes in accordance with the provisions of the accounting standard regarding accounting for income taxes. As required under this standard, our DTAs and DTLs are recognized under the balance sheet method, which recognizes the future tax effect of temporary differences between the amounts recorded in our condensed consolidated financial statements and the tax bases of these amounts. DTAs and DTLs are measured using the enacted tax rates expected to apply to taxable income in the periods in which the DTA or DTL is expected to be realized or settled. Our provision for income taxes for interim financial periods is based on an estimate of our annual effective tax rate for continuing operations for the full year. When estimating our full year 2015 and 2014 annual effective tax rate, we accounted for the tax effects of gains and losses on our investments, changes as a result of the accounting standard regarding the accounting for uncertainty in income taxes, and other adjustments discretely at the federal applicable tax rate. We are required to establish a valuation allowance against our DTAs when it is more likely than not that all or some portion of our DTAs will not be realized. At each balance sheet date, we assess our need for a valuation allowance. Our assessment is based on all available evidence, both positive and negative. This requires management to exercise judgment and make assumptions regarding whether our DTAs will be realized in future periods.

Disclosure of accounting policy for income taxes, which may include its accounting policies for recognizing and measuring deferred tax assets and liabilities and related valuation allowances, recognizing investment tax credits, operating loss carryforwards, tax credit carryforwards, and other carryforwards, methodologies for determining its effective income tax rate and the characterization of interest and penalties in the financial statements.