Condensed Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended
	Apr. 04, 2023	Mar. 29, 2022
Revenue:
Total revenue	$ 126,077	$ 112,562
Restaurant operating costs (exclusive of depreciation and amortization shown separately below):
Other restaurant operating costs	24,011	21,866
General and administrative	13,641	11,840
Depreciation and amortization	6,250	5,721
Pre-opening	492	408
Restaurant impairments, closure costs and asset disposals	1,569	1,389
Total costs and expenses	128,304	118,637
Loss from operations	(2,227)	(6,075)
Interest expense, net	961	437
Loss before taxes	(3,188)	(6,512)
Benefit from income taxes	(73)	(83)
Net loss	$ (3,115)	$ (6,429)
Loss per Class A and Class B common stock, combined
Basic (USD per share)	$ (0.07)	$ (0.14)
Diluted (USD per share)	$ (0.07)	$ (0.14)
Weighted average shares of Class A and Class B common stock outstanding, combined:
Basic (in shares)	46,115,506	45,726,500
Diluted (in shares)	46,115,506	45,726,500
Restaurant revenue
Revenue:
Total revenue	$ 123,227	$ 109,961
Restaurant operating costs (exclusive of depreciation and amortization shown separately below):
Restaurant operating costs	31,025	30,771
Franchising royalties and fees, and other
Revenue:
Total revenue	2,850	2,601
Labor
Restaurant operating costs (exclusive of depreciation and amortization shown separately below):
Restaurant operating costs	39,830	35,493
Occupancy
Restaurant operating costs (exclusive of depreciation and amortization shown separately below):
Restaurant operating costs	$ 11,486	$ 11,149