REVENUE FROM CONTRACTS WITH CUSTOMERS - Loyalty Reward Liability and Gift Card Liability (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 27, 2023	Dec. 28, 2022	Dec. 29, 2021
Change in Contract with Customer, Liability [Roll Forward]
Gift card liability	$ 4,877	$ 4,667
Gift card liability
Change in Contract with Customer, Liability [Roll Forward]
Gift card liability	4,877	4,667
Revenue recognized from gift card liability balance at the beginning of the year	1,064	1,145	$ 1,218
Loyalty reward program
Change in Contract with Customer, Liability [Roll Forward]
Loyalty rewards liability, beginning balance	526	687	900
Revenue deferred	2,065	2,754	2,677
Revenue recognized	(1,904)	(2,915)	(2,890)
Loyalty rewards liability, ending balance	$ 687	$ 526	$ 687
Loyalty reward program | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-12-26
Change in Contract with Customer, Liability [Roll Forward]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	1 year