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Summary of Significant Accounting Policies - Valuation of Goodwill and Intangible Assets (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Finite-Lived Intangible Assets [Line Items]
Intangible assets, net	4,776,059us-gaap_IntangibleAssetsNetExcludingGoodwill	$ 5,718,778us-gaap_IntangibleAssetsNetExcludingGoodwill
Minimum
Finite-Lived Intangible Assets [Line Items]
Finite lived intangible asset, useful life	5 years
Maximum
Finite-Lived Intangible Assets [Line Items]
Finite lived intangible asset, useful life	18 years
Patents | Minimum
Finite-Lived Intangible Assets [Line Items]
Finite lived intangible asset, useful life	8 years
Patents | Maximum
Finite-Lived Intangible Assets [Line Items]
Finite lived intangible asset, useful life	17 years

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- Definition

Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 45

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16212-109274



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 50

-Paragraph 2

-Subparagraph ((a)(1),(b))

-URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275

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