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INCOME TAXES - Narrative (Details) - USD ($) | 12 Months Ended
--- | ---
Dec. 29, 2024 | Dec. 31, 2023 | Dec. 25, 2022
Operating Loss Carryforwards [Line Items] |  |  |
Income tax (benefit) expense | $ (1,301,000) | $ 379,000 | $ 1,345,000
Valuation allowance | 202,709,000 | 184,880,000 |
Increase in valuation allowance | 17,800,000 |  |
Unrecognized tax benefits | 93,000 | 431,000 | $ 1,556,000
Impact of unrecognized tax benefits, if recognized | 0 |  |
Interest of penalties associated with any uncertain tax positions | 0 | $ 0 |
ERC payment received | $ 3,400,000 |  |
ERC payment received, extensible enumeration | other current assets |  |
ERC payment receivable | $ 3,600,000 |  |
ERC payment receivable, extensible enumeration | Other current assets |  |
Labor and related expenses |  |  |
Operating Loss Carryforwards [Line Items] |  |  |
ERC benefit | $ 1,800,000 |  |
General and Administrative Expense |  |  |
Operating Loss Carryforwards [Line Items] |  |  |
ERC benefit | 5,100,000 |  |
U.S. Federal |  |  |
Operating Loss Carryforwards [Line Items] |  |  |
Net operating loss carryforwards | 794,800,000 |  |
Net operating loss carryforwards subject to expiration | 101,900,000 |  |
Net operating loss carryforwards not subject to expiration | 692,900,000 |  |
State |  |  |
Operating Loss Carryforwards [Line Items] |  |  |
Net operating loss carryforwards | 682,600,000 |  |
Net operating loss carryforwards subject to expiration | 602,200,000 |  |
Net operating loss carryforwards not subject to expiration | $ 80,400,000 |  |

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- Definition Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-2 + Details
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