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Note 9 - Income Taxes
3 Months Ended
Apr. 02, 2016
Notes to Financial Statements  
Income Tax Disclosure [Text Block]
9. Income Taxes
 
The effective tax rate for the first quarter of 2016 was 28.8% compared to an effective tax rate of 24.3% in the first quarter of 2015. The effective tax rates for both 2016 and 2015 are lower than the U.S. statutory tax rate primarily due to the result of more income earned in lower tax jurisdictions.