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Note 6 - Pension Plans - Amounts Recognized in Accumulated Other Comprehensive Income (Loss) (Details) - Pension Plan [Member] - USD ($)
$ in Thousands
12 Months Ended
Sep. 29, 2019
Sep. 30, 2018
Unrecognized net actuarial loss $ (53,072) $ (31,988)
Unrecognized prior service benefit 6 106
$ (53,066) $ (31,882)