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

Amount of liability, recognized in statement of financial position, for defined benefit pension and other postretirement plans, classified as noncurrent.

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