Consolidated Statements Of Operations And Comprehensive Loss - USD ($) $ in Thousands	12 Months Ended
	Jan. 03, 2016	Dec. 28, 2014	Dec. 29, 2013
Restaurant sales	$ 859,004	$ 692,755	$ 663,483
Costs and expenses:
Cost of sales	240,322	209,664	201,532
Restaurant wages and related expenses	267,950	219,718	208,404
Restaurant rent expense	58,096	48,865	47,198
Other restaurant operating expenses	135,874	113,586	106,508
Advertising expense	32,242	27,961	29,615
General and administrative	50,515	40,001	37,228
Depreciation and amortization	39,845	36,923	33,594
Impairment and other lease charges	3,078	3,541	4,462
Other expense (income)	(126)	47	17
Total operating expenses	827,796	700,306	668,558
Income (loss) from operations	31,208	(7,551)	(5,075)
Interest Expense	18,569	18,801	18,841
Loss on extinguishment of debt	12,635	0	0
Income (loss) before income taxes	4	(26,352)	(23,916)
Provision (benefit) for income taxes	0	11,765	(10,397)
Net income (loss)	$ 4	$ (38,117)	$ (13,519)
Basic and diluted net income (loss) per share	$ 0.00	$ (1.23)	$ (0.59)
Basic weighted average common shares outstanding	34,958,847	30,885,275	22,958,963
Diluted weighted average common shares outstanding	44,623,251	30,885,275	22,958,963
Other comprehensive income (loss), net of tax:
Net income (loss)	$ 4	$ (38,117)	$ (13,519)
Change in postretirement benefit obligations, net of tax	22	(1,059)	33
Comprehensive income (loss)	$ 26	$ (39,176)	$ (13,486)