Note J - Segment Information (Details Textual) - USD ($)	3 Months Ended	9 Months Ended
Dec. 31, 2021	Dec. 31, 2021	Dec. 31, 2020
Derivative Instruments Not Designated as Hedging Instruments, Gain		$ 1,238,320	$ (0)
Gain (Loss) on Extinguishment of Debt, Total		1,706,614	$ (0)
Paycheck Protection Program CARES Act [Member]
Gain (Loss) on Extinguishment of Debt, Total		1,706,614
Nonoperating Income (Expense) [Member] \| Paycheck Protection Program CARES Act [Member]
Gain (Loss) on Extinguishment of Debt, Total		1,706,614
Hot-rolled Coil Steel Contracts [Member] \| Nonoperating Income (Expense) [Member]
Derivative Instruments Not Designated as Hedging Instruments, Gain	$ 1,721,700
Derivative Instruments Not Designated as Hedging Instruments, Loss		$ 6,498,040

Amount of realized and unrealized gain of derivative instruments not designated or qualifying as hedging instruments.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4C
-Subparagraph (e)
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-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4CC
-URI http://asc.fasb.org/extlink&oid=125515794&loc=SL109998890-113959

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Amount of realized and unrealized loss of derivative instruments not designated or qualifying as hedging instruments.

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Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 50
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