3. Inventories (Details) - USD ($)	Jun. 30, 2020	Jun. 30, 2019
Inventory Disclosure [Abstract]
Raw materials	$ 4,798,489	$ 5,830,140
Work in process	427,744	706,128
Finished goods	3,713,692	5,129,806
Inventory reserve	(568,083)	(138,553)
Inventories, net	$ 8,371,842	$ 11,527,521

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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 of valuation reserve for inventory.

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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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