v3.26.1
Note 4 - Inventories (Tables)
12 Months Ended
Mar. 31, 2026
Notes Tables  
Schedule of Inventory, Current [Table Text Block]
   

As of:

 
   

March 31,

   

March 31,

 
   

2026

   

2025

 

Finished products

  $ 596,965     $ 619,598  

Work in process

    104,202       106,006  

Raw materials and supplies

    249,704       237,607  
      950,871       963,211  

Less: excess of FIFO cost over LIFO cost

    (336,958 )     (359,256 )

Total inventories

  $ 613,913     $ 603,955