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Sale of Sunflower Business (Schedule of revenues and earnings (loss) before income taxes) (Details) - Sunflower Business [Member] - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Jan. 01, 2022	Jan. 02, 2021
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenues	$ 57,924	$ 63,094	$ 54,618
Earnings (loss) before income taxes	$ 1,182	$ 1,082	$ (5,689)

X

- Definition

Amount of operating income (loss) attributable to disposal group, including, but not limited to, discontinued operation.

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-Topic 205
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Amount of revenue attributable to disposal group, including, but not limited to, discontinued operation.

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