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Note C - Inventories (Tables)
6 Months Ended
Sep. 30, 2022
Notes Tables  
Schedule of Inventory, Current [Table Text Block]
   

September 30, 2022

   

March 31, 2022

 

Prime Coil Inventory

  $ 75,353,312     $ 50,482,022  

Non-Standard Coil Inventory

    505,497       1,063,374  

Tubular Raw Material

    8,996,488       9,049,598  

Tubular Finished Goods

    3,738,653       7,351,128  
    $ 88,593,950     $ 67,946,122