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Note 5 - Property and Equipment (Tables)
 9 Months Ended
Sep. 28, 2019
Notes Tables  
Property, Plant and Equipment [Table Text Block]
   
September 28,
2019
    
December 29,
2018
  
Computers and systems
   $
6,043
     $
7,200
  
Equipment and furniture
    
523
      
600
  
Leasehold improvements
    
475
      
743
  
     
7,041
      
8,543
  
                 
Less: accumulated depreciation and amortization
    
4,200
      
5,058
  
                 
Property and equipment, net
   $
2,841
     $
3,485