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Note J - Commitments (Tables)
12 Months Ended
Sep. 28, 2019
Notes Tables  
Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block]
   

Plants and

                 
   

Offices

   

Equipment

   

Total

 
    (in thousands)  

2020

  $ 8,763     $ 6,051     $ 14,814  

2021

    7,919       4,767       12,686  

2022

    7,403       3,088       10,491  

2023

    7,218       1,753       8,971  

2024

    6,165       823       6,988  

2025 and thereafter

    25,545       43       25,588  

Total minimal rental commitments

  $ 63,013     $ 16,525     $ 79,538