Note 14 - Income Taxes  | 
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| Income Tax Disclosure [Text Block] | 
 The benefit from income taxes on continuing operations for the years ended   December  31,  2016  and 2015  is comprised of the following:
 The Company performs an analysis each year to determine whether the expected future income will more likely than not be sufficient to realize the deferred tax assets.  The Company's recent operating results and projections of future income weighed heavily in the Company's overall assessment.  As a result of this analysis, the Company continues to maintain a full valuation allowance against its federal and state net deferred tax assets at   December  31,  2016  as the Company believes that it is more likely than not  that these assets will not be realized. A portion of the deferred tax liability that was recorded in purchase accounting in the prior year served a source of future income to support realization of some of its pre-acquisition deferred tax assets. In prior year, the valuation release associated with realization of the pre-acquisition deferred tax assets resulted in an income tax benefit of approximately $1.1  million to be recorded in connection with purchase accounting as ASC 805.  In the current year, the company maintains a full Valuation Allowance in consolidation and no separate company deferred tax liability recorded will be recorded. The tax effects of significant items comprising the Company’s deferred tax assets and (liabilities) as of   December  31,  2016  and 2015  are as follows:
 The Company's current deferred tax asset and noncurrent deferred tax liability are included within  Other current assets and Other long-term liabilities , respectively, within the consolidated balance sheet as of  December  31,  2016.  Federal tax attribute carryforwards at  December  31,  2016,  consist primarily of approximately $147.7  million of federal net operating losses.  In addition, the Company has approximately $105.0  million of state net operating losses carryforwards.  The utilization of the federal carryforwards as an available offset to future taxable income is subject to limitations under federal income tax laws.  If the federal net operating losses are not utilized, they begin to expire in 2027,  and current state net operating losses not utilized begin to expire this year.The NOL carry forwards are subject to review and possible adjustment by the Internal Revenue Service and state tax authorities. During   December  2016  through  February  2017,  the Company executed four  equity offerings issuing approximately 3.1  million shares of common stock. NOL, and tax credit carry forwards  may  become subject to an annual limitation in the event of certain cumulative changes in the ownership interest of significant stockholders over a three  year period in excess of 50%,  as defined under Sections 382  and 383  of the Internal Revenue Code of 1986,  as amended, or the Code, as well as similar state tax provisions. This could limit the amount of NOLs that we can utilize annually to offset future taxable income or tax liabilities. The amount of the annual limitation, if any, will be determined based on the value of our company immediately prior to an ownership change. Subsequent ownership changes  may  further affect the limitation in future years. Additionally, U.S. tax laws limit the time during which these carry forwards  may  be applied against future taxes, therefore, we  may  not be able to take full advantage of these carry forwards for federal income tax purposes. We are currently evaluating the ownership history of our company to determine if there were any ownership changes as defined under Section 382(g)  of the Code and the effects any ownership change  may  have had.A reconciliation of the difference between the federal statutory tax rates and the Company's effective tax rate from continuing operations is as follows: 
 The following table summarizes the change in uncertain tax benefit reserves for the  two  years ended  December  31,  2016: 
 As of   December  31,  2016  and 2015,  the total amount of gross unrecognized tax benefits was $1.1  December  31,  2016  and 2015  was $1.1 The Company recognized interest and penalties of  $0.2  December  31,  2016  and 2015.   At  December  31,  2016  and 2015,  accrued interest and penalties, net were $2.6  million and $2.4  million, respectively, and included in the Other long-term liabilities  in the consolidated balance sheets.The Company and its subsidiaries file a U.S. Federal consolidated income tax return and consolidated and separate income tax returns in numerous states and local tax jurisdictions.  The following tax years remain subject to examination as of   December  31,  2016: 
 To the extent there was a failure to file a tax return in a previous year; the statute of limitation will not begin until the return is filed. There were no examinations in process by the Internal Revenue Service as of   December  31,  2016.  In 2014,  the Company was selected for examination by the Internal Revenue Service for the tax periods ending  December  31,  2012  and  December  31,  2011  that concluded in 2015. 
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