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Note 8 - Employee Benefit Plans (Tables)
3 Months Ended
Dec. 29, 2018
Notes Tables  
Schedule of Net Benefit Costs [Table Text Block]
   
Three Months Ended
 
   
December 29,
   
December 30,
 
(In thousands)
 
2018
   
2017
 
Interest cost
  $
96
    $
86
 
Service cost
   
74
     
77
 
Recognized net actuarial loss
   
35
     
38
 
Net periodic pension cost
  $
205
    $
201