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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