Inventories (Details) - USD ($)	Dec. 31, 2018	Jun. 30, 2018
Inventory Disclosure [Abstract]
Raw material	$ 3,416,547	$ 3,540,205
Work-in-process	324,932	180,442
Finished goods	2,414,307	1,743,497
Inventory, gross	6,155,786	5,464,144
Less valuation reserve	(444,258)	(444,258)
Inventory, net	$ 5,711,528	$ 5,019,886

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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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Gross amount, as of the balance sheet date, of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process.

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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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