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Note 4 - Restructuring Charges and Acquisition Costs (Tables)
 12 Months Ended
Sep. 30, 2017
Notes Tables  
Restructuring and Related Costs [Table Text Block]
   
 
    
 
 
 
  
Severance and
    
 
 
 
  
 
    
 
 
 
(In thousands)
  
Asset
Impairment
    
Equipment
    
Other Employee
Separation
    
Facility
    
Gain on Sale
of Property
    
 
 
 
   
Charges
    
Relocation Costs
    
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
  
                                                 
2015
  
 
 
 
  
 
 
 
  
 
 
 
  
 
 
 
  
 
 
 
  
 
 
 
Liability as of September 27, 2014
   $
-
     $
-
     $
1,208
     $
-
     $
-
     $
1,208
  
Restructuring charges (recoveries)
    
543
      
79
      
75
      
547
      
(895
 )    
349
  
Cash payments
    
-
      
(79
 )    
(548
 )    
(547
 )    
-
      
(1,174
 )
Non-cash charges
    
(543
 )    
-
      
-
      
-
      
895
      
352
  
Liability as of October 3, 2015
   $
-
     $
-
     $
735
     $
-
     $
-
     $
735