JanOne Inc. Quarterly report pursuant to Section 13 or 15(d)

Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
Income Taxes (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Oct. 01, 2022	Sep. 30, 2023	Oct. 01, 2022
Income Tax Contingency [Line Items]
Income tax (benefit) expense	$ (25)	$ 0	$ (269)	$ 0
Effective tax rate (percent)			30.30%	0.23%
Discontinued operations
Income Tax Contingency [Line Items]
Income tax (benefit) expense	$ (28)	$ 0	$ 3,200	$ 0

Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.