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Note 5 (Tables)
6 Months Ended
Mar. 31, 2018
Notes Tables  
Disclosure of Share-based Compensation Arrangements by Share-based Payment Award [Table Text Block]
   
Three months ended
   
Six months ended
 
   
March 31,
   
March 25,
   
March 31,
   
March 25,
 
   
2018
   
2017
   
2018
   
2017
 
                                 
Stock Options
  $
471
    $
66
    $
1,086
    $
(145
)
Stock purchase plan
   
66
     
61
     
266
     
235
 
Stock issued to an outside director
   
32
     
28
     
32
     
28
 
Restricted stock issued to an employee
   
1
     
1
     
2
     
2
 
Total share-based compensation
  $
570
    $
156
    $
1,386
    $
120
 
                                 
The above compensation is net of tax benefits
  $
344
    $
526
    $
482
    $
1,309