Note C - Inventories - Summary of Inventory Values by Product Group (Details) - USD ($)	Sep. 30, 2021	Mar. 31, 2021
Inventories	$ 67,737,618	$ 36,016,093
Prime Coil Inventory [Member]
Raw materials	55,050,920	23,079,012
Non-standard Coil Inventory [Member]
Raw materials	1,307,105	1,419,055
Tubular Inventory [Member]
Raw materials	6,596,781	2,607,197
Finished Goods	$ 4,782,812	$ 8,910,829

Carrying amount, net of valuation reserves and adjustments, as of the balance sheet date of merchandise or goods held by the company that are readily available for sale.

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