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Inventories (Details) - USD ($)	Dec. 31, 2023	Jun. 30, 2023
Inventories
Raw materials	$ 3,214,087	$ 2,999,879
Work in process	2,954,299	2,909,439
Finished goods	2,495,167	2,626,106
Allowance for obsolescence	(1,143,109)	(1,124,690)
Inventories, net	$ 7,520,444	$ 7,410,734

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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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