Inventories (Details) - USD ($)	Jun. 30, 2019	Dec. 31, 2018
Inventories [Abstract]
Raw materials	$ 973,706	$ 1,675,383
Work in progress	1,931,391	2,737,415
Finished goods	5,805,211	5,209,563
Inventories	$ 8,710,308	$ 9,622,361

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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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