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DISCONTINUED OPERATIONS - Financial Results of Instaff (Details) - USD ($) | 3 Months Ended
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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

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