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Note 12 - Earnings Per Share (Tables)
 12 Months Ended
Sep. 29, 2018
Notes Tables  
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
   
Year Ended
  
   
September 29,
    
September 30,
    
October 1,
  
(In thousands, except per share amounts)
  
2018
    
2017
    
2016
  
Net earnings
   $
36,266
     $
22,548
     $
37,245
  
                         
Basic weighted average shares outstanding
    
19,079
      
19,011
      
18,754
  
Dilutive effect of stock-based compensation
    
198
      
206
      
301
  
Diluted weighted average shares outstanding
    
19,277
      
19,217
      
19,055
  
                         
Net earnings per share:
                        
Basic
   $
1.90
     $
1.19
     $
1.99
  
Diluted
    
1.88
      
1.17
      
1.95