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RECENT RESTAURANT EXPANSION - Narrative (Details) - USD ($)
3 Months Ended 9 Months Ended
May 15, 2019
Jun. 29, 2019
Jun. 29, 2019
Sep. 29, 2018
Business Acquisition [Line Items]        
Notes payable   $ 27,323,000 $ 27,323,000 $ 21,256,000
Lease renewal term   5 years 5 years  
JB's on the Beach        
Business Acquisition [Line Items]        
Consideration $ 7,036,000      
Notes payable $ 7,000,000 $ 7,000,000 $ 7,000,000 $ 0
Revenues of acquiree since acquisition   1,239,000 1,239,000  
Losses of acquiree since acquisition   $ (52,000) $ (52,000)  
JB's on the Beach, Former Owner        
Business Acquisition [Line Items]        
Lease term 20 years      
Annual rent payments $ 600,000      
Rent percent increase every five years 10.00%