Inventories (Details) - USD ($)	Jun. 30, 2016	Dec. 31, 2015
Inventories
Raw materials	$ 1,675,957	$ 1,640,098
Work-in-progress	378,449	375,229
Finished goods	1,334,910	1,336,707
Reduction to LIFO cost	(1,173,768)	(1,232,229)
Total inventories	$ 2,215,548	$ 2,119,805

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
-Section S99
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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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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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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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