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DISCONTINUED OPERATIONS - Financial Results of Instaff (Details) - USD ($)
3 Months Ended
Apr. 02, 2023
Mar. 27, 2022
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]    
Revenue $ 0 $ 1,235
Instaff | Discontinued Operations, Held-for-sale    
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]    
Revenue   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