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Note 3 - Revenue Recognition (Tables)
3 Months Ended
Apr. 03, 2021
Notes Tables  
Disaggregation of Revenue [Table Text Block]
   
Thirteen Week Periods Ended
 
   
April 3,
2021
   
March 28,
2020
 
Engineering:
               
Time and Material
  $
10,478
    $
12,827
 
Fixed Fee
   
3,921
     
1,314
 
Permanent Placement Services
   
67
     
22
 
Total Engineering
  $
14,466
    $
14,163
 
                 
Specialty Health Care:
               
Time and Material
  $
20,933
    $
22,053
 
Permanent Placement Services
   
204
     
144
 
Total Specialty Health Care
  $
21,137
    $
22,197
 
                 
Information Technology:
               
Time and Material
  $
8,796
    $
8,557
 
Permanent Placement Services
   
150
     
116
 
Total Information Technology
  $
8,946
    $
8,673
 
    $
44,549
    $
45,033