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COMMITMENTS, CONTINGENCIES AND OTHER MATTERS (Franchise Program) (Details) - USD ($) | 12 Months Ended
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Sep. 29, 2018 | Sep. 30, 2017
Franchise Program: |  |
Fiscal agent, annual fee amount | $ 25,000 |
Royalties, gross restaurant sales | 3.00% |
Royalties, gross package liquor sales | 1.00% |
Royalty revenue | $ 707,000 | $ 661,000
Atlanta Georgia [Member] |  |
Franchise Program: |  |
Royalties, gross restaurant sales | 10.00% |
James G. Flanigan [Member] |  |
Franchise Program: |  |
Ownership percentage in franchisee | 35.24% |
Michael B. Flanigan [Member] |  |
Franchise Program: |  |
Ownership percentage in franchisee | 35.24% |
Patrick J. Flanigan [Member] |  |
Franchise Program: |  |
Ownership percentage in franchisee | 100.00% |
Limited partnership, percentage | 25.00% |
Officers and directors [Member] |  |
Franchise Program: |  |
Ownership percentage in franchisee | 30.00% |
Limited partnership, percentage | 31.90% |
James G. Flanigan family [Member] |  |
Franchise Program: |  |
Ownership percentage | 60.00% |

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