Income Taxes (Schedule Of Components Of Deferred Tax Assets And Liabilities) (Details) - USD ($) $ in Thousands	Dec. 27, 2016	Dec. 29, 2015
Deferred tax assets:
Equity-based compensation	$ 1,507	$ 1,471
Accrued liabilities	5,212	4,333
Deferred compensation	5,620	5,643
Deferred rent liabilities	14,480	11,986
Tax Credits carryover		819
Intangible Assets - Preopening Costs	3,073	3,413
Other	172	105
Total deferred tax assets	30,064	27,770
Deferred tax liabilities:
Property and equipment	32,001	28,048
Intangible assets	15,968	15,988
Other	284	284
Total deferred tax liabilities	48,253	44,320
Net deferred tax liabilities	$ (18,189)	$ (16,550)