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Note 10 - Geographic Regions (Tables)
 9 Months Ended
Nov. 29, 2020
Notes Tables  
Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas [Table Text Block]
   
13 Weeks Ended
    
39 Weeks Ended
  
   
November 29,
2020
    
December 1,
2019
    
November 29,
2020
    
December 1,
2019
  
                                 
Sales:
  
 
 
 
  
 
 
 
  
 
 
 
  
 
 
 
North America   $
9,863
     $
14,469
     $
30,245
     $
41,546
  
Asia
    
195
      
473
      
499
      
882
  
Europe
    
314
      
905
      
1,091
      
2,092
  
Total sales
  
$
10,372
    
$
15,847
    
$
31,835
    
$
44,520
  
   
November 29,
2020
    
March 1,
2020
  
Long-lived assets:
  
 
 
 
  
 
 
 
North America   $
29,215
     $
24,942
  
Asia
    
1,529
      
1,650
  
Europe
    
-
      
-
  
Total long-lived assets
  
$
30,744
    
$
26,592