Inventories (Details) - USD ($)	Dec. 31, 2019	Jun. 30, 2019
Inventory Disclosure [Abstract]
Raw materials	$ 609,963	$ 974,639
Work-in-process	1,177,110	651,769
Finished goods	1,936,918	1,533,318
Less: inventory reserve	(1,105,948)	(944,167)
Total	$ 2,618,043	$ 2,215,559

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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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