Inventories (Details) - USD ($)	Mar. 31, 2016	Dec. 31, 2015
Inventories
Raw materials	$ 1,841,369	$ 1,640,098
Work-in-progress	395,789	375,229
Finished goods	1,226,083	1,336,707
Reduction to LIFO cost	(1,209,207)	(1,232,229)
Total inventory	$ 2,254,034	$ 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
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.6(a))
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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.

+ References

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Amount of valuation reserve for inventory.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 330
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-Section S99
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-Subparagraph (SAB TOPIC 5.BB)
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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.

+ References

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