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Inventories (Details) - USD ($)	Mar. 31, 2023	Jun. 30, 2022
Inventories
Raw materials	$ 3,244,826	$ 3,019,156
Work in process	3,284,153	2,243,907
Finished goods	3,098,668	3,052,001
Allowance for obsolescence	(1,395,439)	(1,329,637)
Inventories, net	$ 8,232,208	$ 6,985,427

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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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