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Inventories
12 Months Ended
Mar. 31, 2023
Inventory Disclosure [Abstract]  
Inventories Inventories
 
Inventories consisted of the following:
 March 31,
 20232022
At cost—FIFO basis:  
Raw materials$142,490 $129,015 
Work-in-process26,323 28,093 
Finished goods39,714 36,661 
 208,527 193,769 
LIFO cost less than FIFO cost(29,168)(21,630)
Net inventories$179,359 $172,139 
There were LIFO liquidations resulting in $162,000 and $620,000 of additional income in fiscal 2023 and 2022, respectively.