Note J - Segment Information (Details Textual) - USD ($)		3 Months Ended
Jun. 22, 2021	Jun. 30, 2021	Jun. 30, 2020
Gain (Loss) on Extinguishment of Debt, Total		$ 1,706,614	$ (0)
Nonoperating Income (Expense) [Member] \| Hot-rolled Coil Steel Contracts [Member]
Derivative Instruments Not Designated as Hedging Instruments, Loss		1,388,960
Paycheck Protection Program CARES Act [Member]
Gain (Loss) on Extinguishment of Debt, Total	$ 1,706,614	$ 1,706,614

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

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 50
-Section 40
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=123467658&loc=d3e12355-112629

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 50
-Section 40
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=123467658&loc=d3e12317-112629

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585

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Data Type:	xbrli:monetaryItemType
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