Income Taxes Schedule of Components of Income Tax Expense (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 29, 2019	Sep. 30, 2018	Sep. 29, 2019	Sep. 30, 2018
Income Tax Disclosure [Abstract]
Current	$ (48,000)	$ 2,000	$ 17,000	$ 162,000
Deferred	(1,833,000)	146,000	(10,052,000)	184,000
Provision (benefit) for income taxes	$ (1,881,000)	$ 148,000.0	$ (10,035,000)	$ 346,000