Inventories - Schedule of Inventories (Details) - USD ($)	Sep. 30, 2025	Jun. 30, 2025
Inventories
Raw materials	$ 3,211,823	$ 3,261,234
Work in process	348,432	351,510
Finished goods	1,844,859	2,014,729
Inventory reserve	(580,991)	(553,125)
Inventories, net	$ 4,824,123	$ 5,074,348

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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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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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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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