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Note E - Property, Plant and Equipment (Tables)
12 Months Ended
Sep. 30, 2017
Notes Tables  
Property, Plant and Equipment [Table Text Block]
   
September 30,
   
September 24,
   
Estimated
Useful Lives
 
   
2017
   
2016
   
(in years)
 
   
(in thousands)
   
 
 
 
 
                           
Land
  $
2,482
    $
2,512
   
 
-
 
 
Buildings
   
26,741
     
26,741
   
 15
-
39.5
 
Plant machinery
and equipment
   
257,172
     
227,614
   
 5
-
20
 
Marketing equipment
   
278,860
     
278,299
   
 
-
7
 
Transportation
equipment
   
8,449
     
7,637
   
 
5
 
 
Office equipment
   
25,302
     
22,136
   
 3
-
5
 
Improvements
   
38,003
     
34,750
   
 5
-
20
 
Construction in
Progress
   
16,880
     
5,356
   
 
-
 
 
     
653,889
     
605,045
   
 
 
 
 
Less accumulated depreciation
and amortization
   
426,308
     
420,832
   
 
 
 
 
Property, plant and equipment, net
  $
227,581
    $
184,213