Consolidated Statements Of Comprehensive Income - USD ($)	3 Months Ended
	Apr. 03, 2022	Apr. 04, 2021
Revenues:
Revenue	$ 399,476,000	$ 389,993,000
Costs and expenses:
Food, beverage and packaging costs	123,057,000	113,790,000
Restaurant wages and related expenses	141,620,000	129,646,000
Restaurant rent expense (Note 7)	31,013,000	30,314,000
Other restaurant operating expenses	65,407,000	61,419,000
Advertising expense	15,964,000	15,369,000
General and administrative expenses (including stock-based compensation of $1,941 and $1,469, respectively)	22,017,000	21,369,000
Depreciation and amortization	19,542,000	20,609,000
Impairment and other lease charges	496,000	353,000
Other expense, net	202,000	227,000
Total operating expenses	419,318,000	393,096,000
Loss from operations	(19,842,000)	(3,103,000)
Interest expense	7,436,000	6,726,000
Loss before income taxes	(27,278,000)	(9,829,000)
Provision (benefit) for income taxes	(6,009,000)	(2,661,000)
Net loss	$ (21,269,000)	$ (7,168,000)
Basic net income (loss) per share (in dollars per share)	$ (0.42)	$ (0.14)
Diluted net income (loss) per share (in shares)	$ (0.42)	$ (0.14)
Weighted average common shares outstanding:
Weighted average common shares outstanding (in shares)	50,460,279	49,824,140
Shares used in computing diluted net income (loss) per share (in shares)	50,460,279	49,824,140
Other comprehensive income (loss), net of tax:
Net loss	$ (21,269,000)	$ (7,168,000)
Change in valuation of interest rate swap (Notes 6 and 8)	4,282,000	3,159,000
Comprehensive loss	$ (16,987,000)	$ (4,009,000)