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DISCONTINUED OPERATIONS - Financial Results of Instaff (Details) - USD ($)	12 Months Ended
	Jan. 01, 2023	Dec. 26, 2021	Dec. 27, 2020
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income from operations of discontinued operations before gain on sale and income taxes	$ 1,234,996	$ 4,570,216	$ 4,767,103
Instaff | Discontinued operations
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenue	16,465,000	71,292,000	70,765,000
Cost of services	14,144,000	60,948,000	60,585,000
Gross profit	2,321,000	10,344,000	10,180,000
Selling expenses	1,062,000	5,684,000	5,314,000
Depreciation	24,000	90,000	99,000
Income from operations of discontinued operations before gain on sale and income taxes	$ 1,235,000	$ 4,570,000	$ 4,767,000

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Amount of deprecation and amortization expense attributable to property, plant and equipment and intangible assets of discontinued operations.

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