Consolidated Statements Of Operations And Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 02, 2016	Sep. 27, 2015	Oct. 02, 2016	Sep. 27, 2015
Revenues:
Restaurant sales	$ 238,870	$ 217,676	$ 702,757	$ 629,948
Costs and expenses:
Cost of sales	63,844	60,676	184,981	178,022
Restaurant wages and related expenses	75,678	67,116	221,306	197,135
Restaurant rent expense	16,081	14,106	48,077	43,101
Other restaurant operating expenses	37,606	34,261	110,611	100,407
Advertising expense	10,857	8,188	30,755	23,551
General and administrative	13,000	11,764	40,561	36,263
Depreciation and amortization	12,070	9,418	34,613	29,216
Impairment and other lease charges	685	396	1,193	2,732
Other expense	0	0	1,035	(126)
Total operating expenses	229,821	205,925	673,132	610,301
Income from operations	9,049	11,751	29,625	19,647
Interest expense	4,560	4,512	13,615	14,026
Loss on extinguishment of debt	0	0	0	12,635
Income (loss) before income taxes	4,489	7,239	16,010	(7,014)
Provision (benefit) for income taxes	0	0	0	0
Net income (loss)	$ 4,489	$ 7,239	$ 16,010	$ (7,014)
Basic and diluted net income (loss) per share	$ 0.10	$ 0.16	$ 0.35	$ (0.20)
Diluted weighted average common shares outstanding	44,855,778	44,678,514	44,892,188	34,930,326
Other comprehensive income (loss), net of tax:
Net income (loss)	$ 4,489	$ 7,239	$ 16,010	$ (7,014)
Other	0	0	0	0
Comprehensive income (loss)	$ 4,489	$ 7,239	$ 16,010	$ (7,014)