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Note 10 - Income Taxes
9 Months Ended
Sep. 30, 2014
Income Tax Disclosure [Abstract]  
Income Tax Disclosure [Text Block]

10. Income Taxes


The effective income tax rates for the nine months ended September 30, 2014 and 2013 were 34.6% and 37.1%, respectively. For the nine months ended September 30, 2014, the provision for income taxes includes a $1,100 discrete tax benefit primarily due to utilization of the federal research credit. Additionally, the decrease in the effective income tax rate year-over-year is primarily due to the Company’s ability to utilize the federal domestic production activity deduction due to sufficient taxable income, as well as the lower tax rate of a foreign subsidiary acquired during the third quarter of 2013.