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FAIR VALUE OF FINANCIAL INSTRUMENTS (Details) - USD ($) | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2024 | Jun. 25, 2023 | Jun. 30, 2024 | Jun. 25, 2023 | Dec. 31, 2023
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |
Asset impairment charges | $ 0 | $ 0 | $ 0 | $ 0 |
Recurring | Level 1 |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |
Total assets | 3,515,000 |  | 3,515,000 |  | $ 3,264,000
Recurring | Level 1 | Cash accounts |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |
Total assets | 996,000 |  | 996,000 |  | 1,083,000
Recurring | Level 1 | Mutual funds |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |
Total assets | $ 2,519,000 |  | $ 2,519,000 |  | $ 2,181,000

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