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Note I - Income Taxes - Effective Income Tax Rate Reconciliation (Details) - USD ($)
$ in Thousands
12 Months Ended
Sep. 24, 2016
Sep. 26, 2015
Sep. 27, 2014
Income taxes at federal statutory rates $ 40,887 $ 39,172 $ 38,922
State income taxes, net of federal income tax benefit 4,541 4,196 4,281
Domestic production activities deduction (2,100) (2,100) (2,100)
Increase (reduction) in gross unrecognized tax benefits 20 39 (161)
Increase in federal valuation allowance 240 1,366
Share based compensation (1,109) 308 437
Other, net (1,635) (1,245) (1,987)
Income tax expense $ 40,844 $ 41,736 $ 39,392