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RECENT RESTAURANT EXPANSION AND OTHER DEVELOPMENTS - Allocation of fair value assets acquired (Details) - USD ($)
$ in Thousands
Sep. 28, 2019
May 15, 2019
Sep. 29, 2018
Sep. 30, 2017
Business Acquisition [Line Items]        
Goodwill $ 15,570   $ 9,880 $ 9,880
JB's On The Beach        
Business Acquisition [Line Items]        
Cash   $ 11    
Inventory   80    
Furniture, fixtures and equipment   200    
Trademarks   1,110    
Goodwill   5,690    
Liabilities assumed   (55)    
Fair value of assets acquired   $ 7,036