LEASES - Lease Cost (Details) - USD ($) $ in Thousands	3 Months Ended
Apr. 01, 2026	Mar. 26, 2025
LEASES
Amortization of right-of-use assets	$ 38	$ 49
Interest on lease liabilities	12	14
Fixed rent cost	7,413	7,287
Short-term lease cost	3	28
Variable lease cost	535	473
Sublease income	(1,687)	(1,715)
Total lease cost	6,314	6,136
Occupancy and other operating expenses
LEASES
Total lease cost	6,054	5,965
General & administrative
LEASES
Total lease cost	210	108
Depreciation and amortization
LEASES
Total lease cost	38	49
Interest expense
LEASES
Total lease cost	12	14
Property Leases
LEASES
Amortization of right-of-use assets	17	19
Interest on lease liabilities	9	9
Fixed rent cost	7,333	7,184
Variable lease cost	103	139
Sublease income	(1,687)	(1,715)
Total lease cost	5,775	5,636
Equipment Leases
LEASES
Amortization of right-of-use assets	21	30
Interest on lease liabilities	3	5
Fixed rent cost	80	103
Short-term lease cost	3	28
Variable lease cost	432	334
Total lease cost	$ 539	$ 500

Amount of interest expense on finance lease liability.

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 55
-Paragraph 53
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479589/842-20-55-53

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 4
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479041/842-20-45-4

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478964/842-20-50-4

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- Definition

Amount of amortization expense attributable to right-of-use asset from finance lease.

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- Definition

Amount of lease cost recognized by lessee for lease contract.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 7A
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478964/842-20-50-7A

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478964/842-20-50-3

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- Definition

Amount of single lease cost, calculated by allocation of remaining cost of lease over remaining lease term. Includes, but is not limited to, single lease cost, after impairment of right-of-use asset, calculated by amortization of remaining right-of-use asset and accretion of lease liability.

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- Definition

Amount of short-term lease cost, excluding expense for lease with term of one month or less.

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- Definition

Amount of sublease income excluding finance and operating lease expense.

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Amount of variable lease cost, excluded from lease liability, recognized when obligation for payment is incurred for finance and operating leases.

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