Other Expense (Income) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jul. 01, 2018	Jun. 30, 2019	Jul. 01, 2018
Other Income and Expenses [Abstract]
Other Operating Income (Expense), Net	$ (376)	$ 0	$ 1,753	$ 0
Loss on Disposal of Restaurant Equipment	500
Gain on sale-leaseback transactions	$ 100	$ 600	105
Other Income			1,800
Litigation Settlement, Amount Awarded from Other Party			1,900
Sale Leaseback Transaction, Gross Proceeds, Investing Activities			100
Gain on insurance recovery			$ 100