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Note 8 - Pension Plans - Amounts Recognized in the Consolidated Balance Sheets (Details) - USD ($) $ in Thousands | Sep. 26, 2021 | Sep. 27, 2020
--- | --- | ---
Accumulated other comprehensive income (loss) (before income taxes) | $ 36,965 | $ (41,344)
Pension Plan [Member] |  |
Pension obligations | $ 14,243 |
Pension obligations |  | $ 70,027

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