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Note 9 - Income Taxes
 6 Months Ended
Jun. 30, 2015
Notes to Financial Statements  
Income Tax Disclosure [Text Block]
9.     Income Taxes
 
The Company files income tax returns in the United States Federal jurisdiction, in a limited number of foreign jurisdictions, and in many state jurisdictions. Internal Revenue Service examinations have been completed for years prior to 2011. With few exceptions, the Company is no longer subject to U.S. Federal, state or foreign income tax examinations for years before 2010.
 
The Company had $2.3 million of unrecognized tax benefits at June 30, 2015 and December 31, 2014. The Company believes it is reasonably possible that the total amounts of unrecognized tax benefits will decrease in the following twelve months due to the expiration of certain statues of limitations; however, actual results could differ from those currently expected. Effectively all the unrecognized tax benefits would affect the Company’s effective tax rate if recognized at some point in the future. The Company recognizes interest and penalties related to uncertain tax positions in income tax expense.
 
In the three months ended June 30, 2015 after considering the guidance for accounting for income taxes, and weighing the positive and negative evidence including the Company’s recent history of cumulative losses, the Company recorded a $1.3 million valuation allowance on a portion of its deferred tax assets, primarily related to state net operating loss carry forwards and state credits.
 
The Company provided for income taxes from continuing operations at an estimated effective tax rate of 10.6% and 16.1% for the three and six months ended June 30, 2015, and an estimated effective tax rate of 35.6% for the three and six months ended June 30, 2014. The Company’s effective tax benefit rate in the three and six months ended June 30, 2015 was significantly lower than statutory rates due to the non-deductibility of expense related to the impairment of goodwill, as well as the valuation allowance recorded during the three months ended June 30, 2015.