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Note C - Inventories - Schedule of Inventory (Details) - USD ($)
$ in Thousands
Jun. 30, 2023
Mar. 31, 2023
Inventory, Net $ 101,146 $ 86,246
Prime Coil Inventory [Member]    
Prime Coil Inventory 87,209 75,917
Non-standard Coil Inventory [Member]    
Prime Coil Inventory 449 278
Tubular Inventory [Member]    
Prime Coil Inventory 7,955 5,193
Tubular Finished Goods $ 5,533 $ 4,858