Condensed Consolidated Statements of Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 30, 2022	Mar. 31, 2021
Revenue
Total revenue	$ 110,048	$ 107,721
Cost of operations
Food and paper cost	27,732	24,391
Labor and related expenses	32,672	30,732
Occupancy and other operating expenses	23,845	23,844
Company restaurant expenses	84,249	78,967
General and administrative expenses	9,954	10,474
Franchise expenses	8,731	7,751
Depreciation and amortization	3,597	3,938
Loss on disposal of assets	66	26
Impairment and closed-store reserves	131	564
Total expenses	106,728	101,720
Income from operations	3,320	6,001
Interest expense, net	430	517
Income tax receivable agreement income	(130)	(77)
Income before provision for income taxes	3,020	5,561
Provision for income taxes	905	1,597
Net income	$ 2,115	$ 3,964
Net income per share
Basic (usd per share)	$ 0.06	$ 0.11
Diluted (usd per share)	$ 0.06	$ 0.11
Weighted-average shares used in computing net income per share
Basic (shares)	36,225,747	35,795,205
Diluted (shares)	36,480,354	36,424,068
Company-operated restaurant revenue
Revenue
Total revenue	$ 93,957	$ 94,161
Franchise revenue
Revenue
Total revenue	9,255	7,612
Franchise advertising fee revenue
Revenue
Total revenue	$ 6,836	$ 5,948