Income Taxes Schedule of Components of Income Tax Expense (Details) - USD ($)	3 Months Ended		9 Months Ended
	Oct. 03, 2021	Sep. 27, 2020	Oct. 03, 2021	Sep. 27, 2020
Income Tax Disclosure [Abstract]
Current	$ (8,000)	$ 48,000	$ (24,000)	$ 143,000
Deferred	(3,102,000)	83,000	(8,335,000)	(7,259,000)
Change in valuation allowance	1,641,000	(83,000)	4,197,000	276,000
Provision (benefit) for income taxes	$ (1,469,000)	$ 48,000	$ (4,162,000)	$ (6,840,000)