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Business and Summary of Significant Accounting Policies (Inventories) (Details) - USD ($)
$ in Thousands
Dec. 31, 2019
Jan. 01, 2019
Inventory [Line Items]    
Inventories $ 9,871 $ 9,646
Smallwares Inventory    
Inventory [Line Items]    
Inventories $ 6,600 $ 6,500