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Note 5 - Income Taxes	9 Months Ended
Note 5 - Income Taxes	Oct. 01, 2016
Notes to Financial Statements
Income Tax Disclosure [Text Block]	5 . Income Taxes In years prior to 2015, the Company recorded a valuation allowance on substantially all of its domestic deferred tax assets. The effective tax rate was 34.2% and 42.0% for the thirteen and thirty-nine weeks ended October 1, 2016, respectively, compared to 22.0% and 9.0% for the thirteen and thirty-nine weeks ended October 3, 2015, respectively. The 2016 effective tax rate differed from the statutory rate of 34% primarily due to the effect of permanent differences. The 2015 effective tax rate differed from the statutory rate primarily attributable to the partial release of the valuation allowance on its domestic deferred tax assets as of October 3, 2015.