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Note 14 - Geographic Regions (Tables)
 12 Months Ended
Mar. 01, 2020
Notes Tables  
Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas [Table Text Block]
   
Fiscal Year
  
   
2020
    
2019
    
2018
  
                         
Sales:
  
 
 
 
  
 
 
 
  
 
 
 
North America
   $
56,264
     $
47,505
     $
38,641
  
Asia
    
1,378
      
1,070
      
563
  
Europe
    
2,372
      
2,541
      
1,026
  
Total sales
  
$
60,014
    
$
51,116
    
$
40,230
  
                         
Long-lived assets:
  
 
 
 
  
 
 
 
  
 
 
 
North America
   $
24,942
     $
19,372
     $
18,313
  
Asia
    
1,650
      
1,546
      
1,680
  
Europe
    
-
      
-
      
-
  
Total long-lived assets
  
$
26,592
    
$
20,918
    
$
19,993