Condensed Consolidated Statements of Income (Loss) (Unaudited) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 25, 2012
Revenues:
Restaurant sales	$ 102,794	$ 96,553
Franchise income	3,663	3,455
Other operating income	903	290
Total revenues	107,360	100,298
Costs and expenses:
Food and beverage costs	32,061	30,895
Restaurant operating expenses	49,394	47,089
Marketing and advertising	2,001	1,728
General and administrative costs	7,253	6,886
Depreciation and amortization expenses	3,605	3,707
Pre-opening costs	1	77
Total costs and expenses	94,315	90,382
Operating income	13,045	9,916
Other income (expense):
Interest expense, net	(516)	(481)
Debt issuance costs written-off	0	(807)
Other	34	(12)
Income from continuing operations before income tax expense	12,563	8,616
Income tax expense	3,806	2,574
Income from continuing operations	8,757	6,042
Income (loss) from discontinued operations, net of income taxes	(1,096)	53
Net income	7,661	6,095
Preferred stock dividends	0	514
Accretion of preferred stock redemption value	0	73
Excess of redemption value over carrying value of preferred shares redeemed	0	35,776
Net income (loss) applicable to preferred and common shareholders	$ 7,661	$ (30,268)
Basic earnings (loss) per common share:
Continuing operations	$ 0.25	$ (0.89)
Discontinued operations	$ (0.03)	$ 0.00
Basic earnings (loss) per share	$ 0.22	$ (0.89)
Diluted earnings (loss) per common share:
Continuing operations	$ 0.25	$ (0.89)
Discontinued operations	$ (0.03)	$ 0.00
Diluted earnings (loss) per share	$ 0.22	$ (0.89)
Shares used in computing net income (loss) per common share:
Basic	34,456,380	34,170,628
Diluted	35,505,778	34,170,628