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

9. Income Taxes


The effective income tax rates for the six months ended June 30, 2014 and 2013 were 35.1% and 37.5%, respectively. 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 and the lower tax rate of a foreign subsidiary acquired during the third quarter of 2013.