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Warrants (Schedule Of Fair Value Of Warrants Issued) (Details) (USD $)
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Sep. 30, 2014
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Dec. 31, 2013
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|---|---|---|
| Class of Warrant or Right [Line Items] | ||
| Fair value | $ 5,382,009 | $ 5,034,058 |
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June 5, 2009 Series III Warrants [Member]
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| Class of Warrant or Right [Line Items] | ||
| Fair value | 11 | |
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June 5, 2009 Warrants To Placement Agent [Member]
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| Class of Warrant or Right [Line Items] | ||
| Fair value | 1 | |
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October 23, 2009 Warrants To Institutional Investors [Member]
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| Class of Warrant or Right [Line Items] | ||
| Fair value | 11,169 | 19,689 |
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June 30, 2010 Warrants To Institutional Investors [Member]
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| Class of Warrant or Right [Line Items] | ||
| Fair value | 10 | |
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March 31, 2011 Warrants To Institutional Investors [Member]
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| Class of Warrant or Right [Line Items] | ||
| Fair value | 734,147 | 311,360 |
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December 4, 2012 Warrants To Institutional Investors [Member]
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| Class of Warrant or Right [Line Items] | ||
| Fair value | 122,573 | 2,124,444 |
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December 4, 2012 Warrants To Placement Agent [Member]
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| Class of Warrant or Right [Line Items] | ||
| Fair value | 20,474 | 222,286 |
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July 26, 2013 Warrants To Institutional Investors [Member]
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| Class of Warrant or Right [Line Items] | ||
| Fair value | 1,052,856 | 1,148,390 |
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July 26, 2013 Warrants To Placement Agent [Member]
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| Class of Warrant or Right [Line Items] | ||
| Fair value | 50,056 | 83,808 |
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October 16, 2013 Warrants To Institutional Investors [Member]
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| Class of Warrant or Right [Line Items] | ||
| Fair value | 1,252,183 | 1,051,454 |
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October 16, 2013 Warrants To Placement Agent [Member]
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| Class of Warrant or Right [Line Items] | ||
| Fair value | 160,718 | 72,605 |
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January 21, 2014 Warrants To Institutional Investors [Member]
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| Class of Warrant or Right [Line Items] | ||
| Fair value | $ 1,977,833 |