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Note 7 - Postretirement and Postemployment Benefits - Amounts Recognized in the Consolidated Balance Sheets (Details) - USD ($)
$ in Thousands
Sep. 29, 2019
Sep. 30, 2018
Assets for Plan Benefits, Defined Benefit Plan $ 14,338 $ 16,157
Other Postretirement Benefits Plan [Member]    
Assets for Plan Benefits, Defined Benefit Plan 12,383 12,891
Postretirement benefit obligations
Accumulated other comprehensive income (before income tax benefit) $ 14,818 $ 17,917