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Note J - Segment Information (Details Textual) - USD ($) | 3 Months Ended | 9 Months Ended | 21 Months Ended
--- | --- | --- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2022
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net, Total |  |  | $ 1,353,520 | $ 1,238,320 |
Gain (Loss) on Extinguishment of Debt, Total |  |  | (0) | 1,706,614 |
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 |
Nonoperating Income (Expense) [Member] | Hot-rolled Coil Steel Contracts [Member] |  |  |  |  |
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net, Total | $ 822,200 | $ 1,721,700 | $ 7,325,860 | (6,498,040) |
Derivative Instruments Not Designated as Hedging Instruments, Loss | $ 1,721,700 |  |  | $ 6,498,040 |

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