Inventories (Details) - USD ($)	Dec. 31, 2016	Dec. 31, 2015
Components of inventories
Raw materials	$ 1,003,359	$ 643,976
Work-in-process	639,345	549,824
Finished goods	772,652	495,906
Inventory gross	2,415,356	1,689,706
Less: reserve for obsolete inventories	(21,177)	(22,658)
Inventory net	$ 2,394,179	$ 1,667,048

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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-Publisher FASB
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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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