LEASES (Details)	6 Months Ended
	Jun. 28, 2020 USD ($) item	Dec. 29, 2019 USD ($)
Lessee, Lease, Description [Line Items]
Number of asset classes	3
Number of leases with contingent provisions, concessions, or restrictive covenants	0
Lessee, Operating Lease, Existence of Option to Extend [true false]	true
Lessee, Operating Lease, Existence of Option to Terminate [true false]	true
Lease, Practical Expedient, Lessor Single Lease Component [true false]	true
Number of parking lot leases	1
Tenure for certain lease contracts	8 years
Number of financing leases	1
Financing lease payments | $	$ 38,000	$ 1,000,000
Remaining finance lease term	2 months
Minimum
Lessee, Lease, Description [Line Items]
Remaining operating lease term	1 year
Maximum
Lessee, Lease, Description [Line Items]
Remaining operating lease term	8 years
Parking Lot
Lessee, Lease, Description [Line Items]
Remaining operating lease term	42 years