Discontinued Operations (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 26, 2021	Jun. 27, 2020	Jun. 26, 2021	Jun. 27, 2020
Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax [Abstract]
Loss from discontinued operations, before taxes	$ (61)	$ (81)	$ (121)	$ (157)
Income tax benefit	0	0	0	0
Income (loss) from discontinued operations	(61)	(81)	(121)	(157)
Previously Discontinued Operations [Member]
Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax [Abstract]
Workers' compensation costs from former textile operations	(39)	(36)	(68)	(65)
Environmental remediation costs from former textile operations	$ (22)	$ (45)	$ (53)	$ (92)

Amount before tax of income (loss) from a discontinued operation. Includes, but is not limited to, the income (loss) from operations during the phase-out period, gain (loss) on disposal, gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and adjustments to a prior period gain (loss) on disposal.

Amount of tax expense (benefit) related to a discontinued operation. Includes, but is not limited to, tax expense (benefit) related to income (loss) from operations during the phase-out period, tax expense (benefit) related to gain (loss) on disposal, tax expense (benefit) related to gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and tax expense (benefit) related to adjustments of a prior period gain (loss) on disposal.

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+ Details

- Definition

Amount after tax of income (loss) from a discontinued operation including the portion attributable to the noncontrolling interest. Includes, but is not limited to, the income (loss) from operations during the phase-out period, gain (loss) on disposal, gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and adjustments to a prior period gain (loss) on disposal.

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+ Details