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Note 10 - Geographic Regions (Tables)
 6 Months Ended
Aug. 30, 2020
Notes Tables  
Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas [Table Text Block]
   
13 Weeks Ended
    
26 Weeks Ended
  
   
August 30,
2020
    
September 1,
2019
    
August 30,
2020
    
September 1,
2019
  
Sales:
  
 
 
 
  
 
 
 
  
 
 
 
  
 
 
 
North America    $
8,636
     $
12,887
     $
20,382
     $
27,078
  
Asia
    
115
      
157
      
304
      
408
  
Europe
    
499
      
679
      
777
      
1,187
  
Total sales
  
$
9,250
    
$
13,723
    
$
21,463
    
$
28,673
  
   
August 30,
2020
    
March 1, 2020
  
Long-lived assets:
  
 
 
 
  
 
 
 
North America    $
28,306
     $
24,942
  
Asia
    
1,571
      
1,650
  
Europe
    
-
      
-
  
Total long-lived assets
  
$
29,877
    
$
26,592