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Inventories (Tables)
 9 Months Ended
Nov. 30, 2020
Inventories
Inventories are stated at the lower of cost (first in, first out) or market and consisted of the following (in thousands):
 
   
November 30,
2020
   
February 29,
2020
 
Raw materials
  
$
3,770
 
  
$
3,497
 
Work-in-process
  
 
1,482
 
  
 
773
 
Finished goods
  
 
837
 
  
 
1,006
 
   
 
 
   
 
 
 
   
 
6,089
 
  
 
5,276
 
Reserves for obsolescence
  
 
(841
) 
  
 
(796
) 
   
 
 
   
 
 
 
   
$
5,248
 
  
$
4,480