Income Taxes (Reconciliation of Federal Statutory Tax Expense to Effective Income Tax Expense) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 27, 2015
Dec. 28, 2014
Dec. 29, 2013
Income Tax Disclosure [Abstract]      
Expected income tax expense $ 6,524 $ 5,382 $ 5,191
State tax expense, net of federal benefit 725 548 647
FICA tip credit (1,986) (1,676) (1,381)
Other 480 83 (261)
Total income tax expense $ 5,743 $ 4,337 $ 4,196