Inventories, net (Components Of Inventory) (Details) - USD ($)	Jul. 31, 2022	Apr. 30, 2022
Inventories, net [Abstract]
Finished products	$ 23,589,190	$ 22,175,641
Work-in-process	5,494,596	5,907,766
Raw materials	150,281,577	140,118,156
Total inventory, gross	179,365,363	168,201,563
Less excess and obsolescence reserve	(3,059,347)	(3,236,347)
Total inventory, net	$ 176,306,016	$ 164,965,216

No definition available.

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Amount before valuation and LIFO reserves of completed merchandise or goods expected to be sold within one year or operating cycle, if longer.

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Gross amount, as of the balance sheet date, of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process.

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Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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Amount before valuation and LIFO reserves of raw materials expected to be sold, or consumed within one year or operating cycle, if longer.

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Amount of valuation reserve for inventory.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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Amount before valuation and LIFO reserves of merchandise or goods in the production process expected to be completed within one year or operating cycle, if longer.

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