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Inventories (Details) - USD ($)	Apr. 30, 2024	Apr. 30, 2023
Inventory Disclosure [Abstract]
Raw materials	$ 5,750,324	$ 8,132,196
Work-in-process	1,289,997	509,381
Finished goods	966,916	278,996
Total	$ 8,007,237	$ 8,920,573

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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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-Topic 210
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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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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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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 210
-SubTopic 10
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-Section S99
-Paragraph 1
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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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