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Inventory
12 Months Ended
Mar. 31, 2023
Inventory [Abstract]  
Inventory
5. Inventory

Inventory is comprised of the following:

 
 
March 31, 2023
   
March 31, 2022
 
Raw materials
 
$
147,880,000
   
$
150,414,000
 
Work in process
   
7,033,000
     
6,880,000
 
Finished goods
   
201,198,000
     
226,729,000
 
 
   
356,111,000
     
384,023,000
 
Less allowance for excess and obsolete inventory
   
(16,436,000
)
   
(13,520,000
)
 
               
Total
 
$
339,675,000
   
$
370,503,000
 
 
               
Inventory unreturned
 
$
16,579,000
   
$
15,001,000