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Note 4 - Investments in Associated Companies (Details Textual) - USD ($) | 12 Months Ended |
--- | --- | ---
Sep. 26, 2021 | Sep. 27, 2020 | Sep. 29, 2019 | Mar. 16, 2020
Equity Method Investments | $ 26,682,000 | $ 27,624,000 |  |
Goodwill, Ending Balance | 330,204,000 | 328,445,000 | $ 250,309,000 | $ 79,896,000
MNI [Member] |  |  |  |
Proceeds from Equity Method Investment, Distribution | 2,300,000 | 1,300,000 | 3,350,000 |
Editorial Service Fees | 5,562,000 | 6,152,000 | 6,636,000 |
TNI Partners [Member] |  |  |  |
Proceeds from Equity Method Investment, Distribution | $ 5,150,000 | $ 3,176,000 | $ 4,245,000 |
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners | 50.00% | 50.00% |  |
Equity Method Investments | $ 14,702,000 |  |  |
Goodwill, Ending Balance |  | $ 12,366,000 |  |
Other Intangible Assets, Net |  | $ 2,336,000 |  |
MNI [Member] |  |  |  |
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners | 50.00% | 50.00% |  |
Equity Method Investments | $ 11,980,000 |  |  |

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