Income Taxes (Narrative) (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 25, 2022	Jun. 26, 2021	Dec. 25, 2021
Income Tax Disclosure [Abstract]
Effective income tax (benefit) rate	0.20%	13.20%
Net deferred tax liability	$ 91		$ 91
Unrecognized tax benefits	501		$ 494
Income tax penalties and interest accrued	$ 0