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Stockholders' Equity (Details 1) (USD $) |  |  |  | 12 Months Ended |  | 12 Months Ended |  | 12 Months Ended |  |  |  | 12 Months Ended |  | 12 Months Ended
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Dec. 31, 2012 | Dec. 31, 2011 | Jan. 31, 2011 | Dec. 31, 2012 December 2011 financing [Member] | Dec. 31, 2011 December 2011 financing [Member] | Dec. 31, 2012 January 2011 financing [Member] | Dec. 31, 2011 January 2011 financing [Member] | Dec. 31, 2012 July 2009 financing [Member] | Dec. 31, 2011 July 2009 financing [Member] | Dec. 31, 2012 Warrants assumed in June 2009 Merger [Member] | Dec. 31, 2011 Warrants assumed in June 2009 Merger [Member] | Dec. 31, 2012 August 2007 consulting services [Member] | Dec. 31, 2011 August 2007 consulting services [Member] | Dec. 31, 2012 Minimum [Member] Warrants assumed in June 2009 Merger [Member] | Dec. 31, 2012 Maximum [Member] Warrants assumed in June 2009 Merger [Member]
Summary of warrants outstanding |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Exercise Price |  |  | 1.40 | 0.65 |  | 1.40 |  | 3.38 |  |  |  | 3.00 |  | 0.05 | 1.28
Expiration Date |  |  |  | Dec. 06, 2016 |  | Jan. 27, 2016 |  | Jul. 01, 2014 |  |  |  | Aug. 03, 2012 |  | Mar. 24, 2013 | Apr. 28, 2016
Number of Warrants | 21,593,844 | 21,743,844 |  | 5,774,784 | 5,774,784 | 10,565,200 | 10,565,200 | 333,333 | 333,333 | 4,920,527 | 4,920,527 | 0 | 150,000 |  |
Common Stock Warrant Liability | $ 2,859,899 | $ 5,176,319 |  | $ 2,078,921 | $ 1,963,427 | $ 779,711 | $ 3,169,560 | $ 1,267 | $ 43,332 | $ 0 | $ 0 | $ 0 | $ 0 |  |

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- Definition The exercise price of each class 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)(4)) -URI http://asc.fasb.org/extlink&oid=6881521&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 -Subparagraph 4 -Article 4 + Details
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- Definition Aggregate amount of each class of warrants or rights outstanding. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 129 -Paragraph 4 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: 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=6881521&loc=d3e23780-122690 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph i -Article 4 + Details
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- Definition Value of outstanding derivative securities that permit the holder the right to purchase securities (usually equity) from the issuer at a specified price. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Emerging Issues Task Force (EITF) -Number 98-5 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: 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=6881521&loc=d3e23780-122690 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph i -Article 4 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Emerging Issues Task Force (EITF) -Number 00-27 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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