Consolidated Statements of Operations (Unaudited) (USD $) In Thousands, except Per Share data	3 Months Ended		6 Months Ended
	Jun. 26, 2011	Jun. 27, 2010	Jun. 26, 2011	Jun. 27, 2010
Consolidated Statements of Operations [Abstract]
Revenues	$ 94,400	$ 89,152	$ 184,818	$ 170,996
Costs and expenses
Cost of sales	25,102	23,032	49,391	44,389
Labor	31,679	30,004	62,163	58,100
Operating	14,407	13,807	28,430	26,560
Occupancy	6,310	5,785	12,160	11,310
General and administrative expenses	4,869	4,589	10,882	8,987
Restaurant preopening costs	1,058	480	1,601	1,685
Depreciation and amortization	4,146	4,211	8,252	8,335
Total costs and expenses	87,571	81,908	172,879	159,366
Income from operations	6,829	7,244	11,939	11,630
Interest expense, net	441	1,773	921	3,543
Income before income taxes	6,388	5,471	11,018	8,087
Income tax (benefit) expense	(57,010)	4	(56,927)	104
Net income	63,398	5,467	67,945	7,983
Undeclared preferred dividends		(3,090)		(6,179)
Net income attributed to common shareholders	$ 63,398	$ 2,377	$ 67,945	$ 1,804
Net income per basic share	$ 3.29	$ 0.33	$ 3.53	$ 0.25
Net income per diluted share	$ 3.09	$ 0.33	$ 3.31	$ 0.25
Weighted average shares outstanding-basic	19,277	7,234	19,264	7,234
Weighted average shares outstanding-diluted	20,547	7,234	20,542	7,234