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Note 8 - Employee Benefit Plans (Tables)
3 Months Ended
Dec. 28, 2019
Notes Tables  
Schedule of Net Benefit Costs [Table Text Block]
   
Three Months Ended
 
   
December 28,
   
December 29,
 
(In thousands)
 
2019
   
2018
 
Interest cost
  $
82
    $
96
 
Service cost
   
83
     
74
 
Recognized net actuarial loss
   
72
     
35
 
Net periodic pension cost
  $
237
    $
205