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Note 3 - Revenue Recognition (Tables)
 3 Months Ended
Mar. 30, 2019
Notes Tables  
Disaggregation of Revenue [Table Text Block]
   
March 30,
2019
    
March 31,
2018
  
Engineering:
                
Time and Material
   $
13,843
     $
18,655
  
Fixed Fee
    
5,169
      
2,763
  
Permanent Placement Services
    
43
      
-
  
Total Engineering
   $
19,055
     $
21,418
  
                 
Specialty Health Care:
                
Time and Material
   $
23,907
     $
22,113
  
Permanent Placement Services
    
264
      
521
  
Total Specialty Health Care
   $
24,171
     $
22,634
  
                 
Information Technology:
                
Time and Material
   $
8,308
     $
6,668
  
Permanent Placement Services
    
61
      
92
  
Total Information Technology
   $
8,369
     $
6,760
  
    $
51,595
     $
50,812