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Other Expense (Income) (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2018
Sep. 29, 2019
Sep. 30, 2018
Other Income and Expenses [Abstract]      
Loss on Disposal of Restaurant Equipment   $ 600  
Gain on sale-leaseback transactions $ 100 289 $ 700
Other Income   1,800  
Litigation Settlement, Amount Awarded from Other Party   1,900  
Gain on insurance recovery $ 400 $ 100 $ 400