Condensed Consolidated Statements Of Operations (USD $) In Thousands, except Per Share data	3 Months Ended		9 Months Ended
	Oct. 02, 2011	Oct. 03, 2010	Oct. 02, 2011	Oct. 03, 2010
Condensed Consolidated Statements Of Operations [Abstract]
Net sales	$ 36,944	$ 35,164	$ 116,257	$ 110,225
Costs and expenses:
Cost of sales	12,260	11,357	38,513	35,332
Restaurant labor and related costs	12,926	12,375	39,137	37,726
Depreciation and amortization of restaurant property and equipment	1,490	1,469	4,433	4,488
Other operating expenses	8,432	8,200	25,269	24,819
Total restaurant operating expenses	35,108	33,401	107,352	102,365
General and administrative expenses	2,387	2,291	7,222	6,730
Operating income (loss)	(551)	(528)	1,683	1,130
Other income (expense):
Interest expense	(414)	(465)	(1,257)	(1,432)
Other, net	38	(19)	66	14
Total other expense	(376)	(484)	(1,191)	(1,418)
Income (loss) before income taxes	(927)	(1,012)	492	(288)
Income tax benefit	321	2,490	21	2,589
Net income (loss)	$ (606)	$ 1,478	$ 513	$ 2,301
Basic earnings (loss) per share	$ (0.10)	$ 0.25	$ 0.09	$ 0.39
Diluted earnings (loss) per share	$ (0.10)	$ 0.25	$ 0.08	$ 0.38