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Note 9 - Income Taxes - Effective Consolidated Tax Rate (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jul. 01, 2018
Jul. 02, 2017
Jul. 01, 2018
Jul. 02, 2017
Income Before Income Taxes     $ 3,940 $ 3,021
Income tax provision $ 78 $ 179 $ 133 $ 266
Effective Income Tax Rate     3.40% 8.80%