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Note 12- Investments (Details Textual) - USD ($) | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Mar. 30, 2024 | Mar. 30, 2023 | Mar. 25, 2023 | Mar. 30, 2024 | Mar. 30, 2023 | Mar. 25, 2023 | Sep. 30, 2023
Debt Securities, Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss | $ 0 |  |  | $ 0 |  |  |
Investments |  |  |  |  |  |  | $ 0
Proceeds from Sale and Maturity of Marketable Securities |  | $ 2,000,000 |  | 0 | $ 5,300,000 | $ 5,300,000 |
Marketable Securities, Gain (Loss) | $ 0 |  | $ 59,000 | $ (0) |  | 22,000 |
Marketable Security, Unrealized Gain (Loss) |  |  | $ 59,000 |  |  | $ 19,000 |

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