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RECENT RESTAURANT EXPANSION AND OTHER DEVELOPMENTS - Schedule of unaudited pro forma financial information (Details) - USD ($) $ / shares in Units, $ in Thousands | 12 Months Ended
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Oct. 03, 2020 | Sep. 28, 2019
Business Acquisition [Line Items] |  |
Basic (in Shares) | 3,500,000 | 3,479,000
Diluted (in Shares) | 3,500,000 | 3,531,000
JB's On The Beach |  |
Business Acquisition [Line Items] |  |
Total revenues |  | $ 170,132
Net income |  | $ 3,336
Net income per share - basic (in Dollars per share) |  | $ 0.96
Net income per share - diluted (in Dollars per share) |  | $ 0.94
Basic (in Shares) |  | 3,479
Diluted (in Shares) |  | 3,531

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