Consolidated Statements of Operations and Comprehensive Loss (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Jan. 02, 2012	Dec. 27, 2010
Revenues:
Restaurant net sales	$ 94,757	$ 98,920	$ 106,636
Franchise fees and royalties	3,195	3,215	3,063
Total revenues	97,952	102,135	109,699
Costs and expenses:
Cost of food and beverage	22,171	22,902	24,366
Restaurant labor and related benefits	34,165	36,068	40,161
Occupancy and other restaurant operating expenses	30,337	31,330	33,977
Total operating costs and expenses	86,673	90,300	98,504
General and administrative expenses	11,641	13,824	13,692
Depreciation and amortization	3,613	4,230	4,773
Provision for losses on asset impairments and disposals	424	431	732
Closed store costs	117	61	152
Lease termination (income) expense, net	(13)	22	203
Gain on sale of assets		(149)	(5,205)
Total costs and expenses	102,455	108,719	112,851
Operating loss	(4,503)	(6,584)	(3,152)
Other income (expense):
Interest income			1
Interest expense		(1)	(4)
Other income	62	46	14
Total other income	62	45	11
Net loss and comprehensive loss	$ (4,441)	$ (6,539)	$ (3,141)
Per Share Data:
Loss per share, basic and diluted (in dollars per share)	$ (0.07)	$ (0.13)	$ (0.06)
Weighted average common shares outstanding (in shares)	60,830,353	51,368,499	50,638,031