Income Taxes	6 Months Ended
Jun. 30, 2018
Income Tax Disclosure [Abstract]
Income Taxes	Note 6 – Income Taxes At December 31, 2017, there were $12.2 million in net operating loss carryforwards, subject to applicable limitations, available to us for federal purposes which will expire beginning for the year ended December 31, 2032 through 2036. Additionally, there were $13.8 million in net operating loss carryforwards, subject to limitations, available to us for state purposes, which will expire beginning for the year ended December 31, 2019 through 2037. Utilization of net operating loss carryforwards may be subject to limitations as set forth in Section 382 of the Internal Revenue Code (“Section 382”). Based on our preliminary Section 382 analysis, we do not believe that our current net operating loss carryforwards are subject to these limitations as of June 30, 2018. However, until we complete a final Section 382 analysis upon filing of our 2018 income tax return, there can be no assurances that our preliminary analysis is accurate or complete. Should we identify any limitations upon the completion of our final Section 382 analysis, the impact could be material to our consolidated financial statements and we could incur additional income tax expense arising from the sale of the Cold-EEZE^® Business. For the six months ended June 30, 2017, we charged to discontinued operations $3.1 million for estimated federal and state income taxes arising from the sale of the Cold-EEZE^® Business and we have realized an income tax benefit from continuing operations of $1.0 million as a consequence of the utilization of the federal and state net operating losses. Until sufficient taxable income to offset the temporary timing differences attributable to operations, and the tax deductions attributable to option, warrant and stock activities are assured, a valuation allowance equaling the total deferred tax asset is being provided. As a consequence of the accumulated losses of the Company, we believe that this allowance is required due to the uncertainty of realizing these tax benefits in the future. On December 22, 2017, the President of the United States signed into law legislation that is commonly referred to as the Tax Cuts and Jobs Act (the “TCJA”). This legislation reduced the U.S. corporate tax rate from the existing graduated rate of 15-35% to a flat 21% for tax years beginning after December 31, 2017. As a result of the enacted law, we were required to revalue our deferred tax assets and liabilities existing as of December 31, 2017 from the graduated 15-35% federal rate in effect through the end of 2017, to the new flat 21% rate. This revaluation resulted in a reduction to our deferred tax asset of $1.8 million. This amount was offset by a corresponding reduction to our valuation allowance. The other provisions of the TCJA did not have a material impact on our December 31, 2017 consolidated financial statements. Estimates used to prepare our income tax expense are based on our initial analysis of the TCJA. Given the complexity of the TCJA, anticipated guidance from the U.S. Treasury regarding implementation of the TCJA, and the potential for additional guidance from the Securities and Exchange Commission and the FASB related to the TCJA, these estimates may be adjusted during Fiscal 2018 to reflect any such guidance provided.

Income Taxes

6 Months Ended

Jun. 30, 2018

Note 6 – Income Taxes

At December 31, 2017, there were $12.2 million in net operating loss carryforwards, subject to applicable limitations, available to us for federal purposes which will expire beginning for the year ended December 31, 2032 through 2036. Additionally, there were $13.8 million in net operating loss carryforwards, subject to limitations, available to us for state purposes, which will expire beginning for the year ended December 31, 2019 through 2037.

Utilization of net operating loss carryforwards may be subject to limitations as set forth in Section 382 of the Internal Revenue Code (“Section 382”). Based on our preliminary Section 382 analysis, we do not believe that our current net operating loss carryforwards are subject to these limitations as of June 30, 2018. However, until we complete a final Section 382 analysis upon filing of our 2018 income tax return, there can be no assurances that our preliminary analysis is accurate or complete. Should we identify any limitations upon the completion of our final Section 382 analysis, the impact could be material to our consolidated financial statements and we could incur additional income tax expense arising from the sale of the Cold-EEZE^® Business.

For the six months ended June 30, 2017, we charged to discontinued operations $3.1 million for estimated federal and state income taxes arising from the sale of the Cold-EEZE^® Business and we have realized an income tax benefit from continuing operations of $1.0 million as a consequence of the utilization of the federal and state net operating losses.

Until sufficient taxable income to offset the temporary timing differences attributable to operations, and the tax deductions attributable to option, warrant and stock activities are assured, a valuation allowance equaling the total deferred tax asset is being provided. As a consequence of the accumulated losses of the Company, we believe that this allowance is required due to the uncertainty of realizing these tax benefits in the future.

On December 22, 2017, the President of the United States signed into law legislation that is commonly referred to as the Tax Cuts and Jobs Act (the “TCJA”). This legislation reduced the U.S. corporate tax rate from the existing graduated rate of 15-35% to a flat 21% for tax years beginning after December 31, 2017. As a result of the enacted law, we were required to revalue our deferred tax assets and liabilities existing as of December 31, 2017 from the graduated 15-35% federal rate in effect through the end of 2017, to the new flat 21% rate. This revaluation resulted in a reduction to our deferred tax asset of $1.8 million. This amount was offset by a corresponding reduction to our valuation allowance. The other provisions of the TCJA did not have a material impact on our December 31, 2017 consolidated financial statements. Estimates used to prepare our income tax expense are based on our initial analysis of the TCJA. Given the complexity of the TCJA, anticipated guidance from the U.S. Treasury regarding implementation of the TCJA, and the potential for additional guidance from the Securities and Exchange Commission and the FASB related to the TCJA, these estimates may be adjusted during Fiscal 2018 to reflect any such guidance provided.