Note 12 - Income Taxes	3 Months Ended
Note 12 - Income Taxes	Mar. 31, 2020
Notes to Financial Statements
Income Tax Disclosure [Text Block]	Note 12 — Income Taxes Due to our cumulative loss position, we have established a full valuation allowance against our deferred tax assets at March 31, 2020 and December 31, 2019 . Due to our full valuation allowance, we have not recorded a provision for federal or state income taxes during each of the three months ended March 31, 2020 and 2019 . In response to the global pandemic related to COVID- 19, the President signed into law the Coronavirus Aid, Relief, and Economic Security Act (the “CARES Act”) on March 27, 2020. The CARES Act provides numerous relief provisions for corporate tax payers, including modification of the utilization limitations on net operating losses, favorable expansions of the deduction for business interest expense under Internal Revenue Code Section 163 (j), and the ability to accelerate timing of refundable AMT credits. For the three months ended March 31, 2020, there were no material tax impacts to our consolidated financial statements as it relates to the CARES Act or other COVID- 19 measures. The Company continues to monitor additional guidance issued by the U.S. Treasury Department, the Internal Revenue Service and others.

The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.