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Note 7 - Goodwill (Tables)
 6 Months Ended
Jul. 01, 2017
Notes Tables  
Schedule of Goodwill [Table Text Block]
   
Engineering
   
Information
Technology
    
Specialty
Health Care
    
Total
  
                                 
Balance as of December 31, 2016
   $
4,411
     $
5,516
     $
2,398
     $
12,325
  
                                 
Goodwill recorded, RAF
    
133
      
-
      
-
      
133
  
                                 
Balance as of July 1, 2017
   $
4,544
     $
5,516
     $
2,398
     $
12,458