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Inventories (Tables)
12 Months Ended
Feb. 28, 2023
Inventory Disclosure [Abstract]  
Schedule of inventories
   February 28,
2023
   February 28,
2022
 
(amounts in thousands)        
Raw materials  $114   $130 
Work-in-process   22    14 
Finished goods   19    
-
 
           
Total inventory  $155   $144