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DISCONTINUED OPERATIONS - Financial Results of Instaff (Details) - USD ($)
3 Months Ended 9 Months Ended
Oct. 01, 2023
Sep. 25, 2022
Oct. 01, 2023
Sep. 25, 2022
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]        
Income $ 0 $ 0 $ 0 $ 1,235
Instaff | Discontinued Operations, Held-for-sale        
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]        
Income       16,465,000
Cost of services       14,144,000
Gross profit       2,321,000
Selling expenses       1,062,000
Depreciation       24,000
Income from discontinued operations before gain on sale and income taxes       $ 1,235,000