Stockholders' Equity (Details 1) (USD $)	3 Months Ended
Mar. 31, 2015	Dec. 31, 2014
Summary of warrants outstanding
Number of Warrants	1,012,060	1,012,060
Common Stock Warrant Liability	$ 1,732,956us-gaap_WarrantsAndRightsOutstanding	$ 2,022,729us-gaap_WarrantsAndRightsOutstanding
March 2013 Financing [Member]
Summary of warrants outstanding
Exercise Price ($ per share)	$ 3.17
Expiration Date	Sep. 12, 2018
Number of Warrants	284,091	284,091
Common Stock Warrant Liability	1,732,956	2,022,729
Warrants assumed in June 2009 Merger [Member]
Summary of warrants outstanding
Number of Warrants	727,969	727,969
Common Stock Warrant Liability	$ 0	$ 0
Minimum [Member] \| Warrants assumed in June 2009 Merger [Member]
Summary of warrants outstanding
Exercise Price ($ per share)	$ 4.08
Expiration Date	Aug. 01, 2015
Maximum [Member] \| Warrants assumed in June 2009 Merger [Member]
Summary of warrants outstanding
Exercise Price ($ per share)	$ 5.08
Expiration Date	Apr. 28, 2016

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+ References

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- Definition

Number of warrants or rights outstanding.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.4-08.(i))

-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 08

-Paragraph i

-Article 4

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Value of outstanding derivative securities that permit the holder the right to purchase securities (usually equity) from the issuer at a specified price.

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