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Note 4 - Restructuring Charges (Tables)
 12 Months Ended
Sep. 29, 2018
Notes Tables  
Restructuring and Related Costs [Table Text Block]
   
Asset
    
 
 
 
  
Severance and
    
 
 
 
  
Gain on Sale
    
 
 
 
(In thousands)
  
Impairment
    
Equipment
    
Other Employee
    
Facility
    
of Property
    
 
 
 
   
Charges
    
Relocation Costs
    
Separation Costs
    
Closure Costs
    
and Equipment
    
Total
  
2017
  
 
 
 
  
 
 
 
  
 
 
 
  
 
 
 
  
 
 
 
  
 
 
 
Liability as of October 1, 2016
   $
-
     $
31
     $
239
     $
-
     $
-
     $
270
  
Restructuring charges
    
-
      
164
      
-
      
-
      
-
      
164
  
Cash payments
    
-
      
(195
 )    
(239
 )    
-
      
-
      
(434
 )
Non-cash charges
    
-
      
-
      
-
      
-
      
-
      
-
  
Liability as of September 30, 2017
   $
-
     $
-
     $
-
     $
-
     $
-
     $
-
  
                                                 
2016
  
 
 
 
  
 
 
 
  
 
 
 
  
 
 
 
  
 
 
 
  
 
 
 
Liability as of October 3, 2015
   $
-
     $
-
     $
735
     $
-
     $
-
     $
735
  
Restructuring charges (recoveries)
    
20
      
186
      
-
      
89
      
(180
 )    
115
  
Cash payments
    
-
      
(155
 )    
(496
 )    
(89
 )    
-
      
(740
 )
Non-cash charges
    
(20
 )    
-
      
-
      
-
      
180
      
160
  
Liability as of October 1, 2016
   $
-
     $
31
     $
239
     $
-
     $
-
     $
270