Consolidated Statements of Operations and Comprehensive Loss (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Dec. 29, 2014	Dec. 30, 2013	Dec. 31, 2012
Revenues:
Restaurant net sales	$ 74,905	$ 83,338	$ 94,757
Franchise fees and royalties	2,853	2,989	3,195
Total revenues	77,758	86,327	97,952
Costs and expenses:
Cost of food and beverage	20,078	20,736	22,171
Restaurant labor and related benefits	29,046	32,379	34,165
Occupancy and other restaurant operating expenses	27,720	28,971	30,337
Total operating costs and expenses	76,844	82,086	86,673
General and administrative expenses	12,359	11,746	11,641
Depreciation and amortization	2,394	2,724	3,613
Restaurant pre-opening expenses	15	29	0
Provision for losses on asset impairments and disposals	346	1,122	424
Closed store costs	172	124	117
Lease termination expense (income), net	1,468	57	(13)
Gain on sale of assets	(50)	(34)	0
Total costs and expenses	93,548	97,854	102,455
Operating loss	(15,790)	(11,527)	(4,503)
Other income (expense):
Interest expense	(471)	0	0
Debt issuance amortization	(446)	0	0
Other income	82	83	62
Total other income (expense)	(835)	83	62
Net loss and comprehensive loss	$ (16,625)	$ (11,444)	$ (4,441)
Per Share Data:
Loss per share, basic and diluted (in dollars per share)	$ (0.82)	$ (0.64)	$ (0.29)
Weighted average common shares outstanding (in shares)	20,271,585	17,993,858	15,207,588