LEASES (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 28, 2023 USD ($) lease restaurant	Jun. 29, 2022 USD ($) restaurant property	Jun. 28, 2023 USD ($) restaurant lease item	Jun. 29, 2022 USD ($) restaurant
Lessee, Lease, Description [Line Items]
Initial lease term	20 years		20 years
Number of renewable options | item			4
Renewal term	5 years		5 years
Lessee, Operating Lease, Existence of Option to Extend [true false]			true
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability			$ 13,634	$ 8,485
Operating Lease, Impairment Loss				0
Impairment of Right-of-Use Assets	$ 0	$ 164	39	$ 253
California
Lessee, Lease, Description [Line Items]
Number of restaurants primarily responsible for impairment | restaurant				1
California | Maximum
Lessee, Lease, Description [Line Items]
Operating Lease, Impairment Loss			$ 100
Lease Not Yet Commenced
Lessee, Lease, Description [Line Items]
Number Of Leases | lease	1		1
Property Lease
Lessee, Lease, Description [Line Items]
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability			$ 13,607	$ 8,485
Property Lease | California
Lessee, Lease, Description [Line Items]
Number of restaurants primarily responsible for impairment | restaurant			1
Equipment Lease
Lessee, Lease, Description [Line Items]
Number Of Finance Leases | lease	10		10
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability			$ 27
Property lease modification
Lessee, Lease, Description [Line Items]
Number of Restaurants with lease modification | restaurant	10	9	22	13
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability	$ 3,500	$ 6,000	$ 13,600	$ 8,500
Number of properties impacted on original lease classification | property		1
Original impact of original lease classification		$ 700
Facility Leases
Lessee, Lease, Description [Line Items]
Number Of Finance Leases | lease	1		1