|
Warrants (Schedule Of Unrealized Gains Losses On Fair Value Of Warrants) (Details) (USD $)
|
3 Months Ended | 6 Months Ended | 147 Months Ended | ||
|---|---|---|---|---|---|
|
Jun. 30, 2013
|
Jun. 30, 2012
|
Jun. 30, 2013
|
Jun. 30, 2012
|
Jun. 30, 2013
|
|
| Unrealized (loss)/gain on fair value of warrants | $ (1,206,656) | $ 802,248 | $ (837,754) | $ 540,387 | $ 3,502,227 |
|
December 18, 2007 Financing [Member]
|
|||||
| Unrealized (loss)/gain on fair value of warrants | 50,722 | ||||
|
March 20, 2008 Financing [Member]
|
|||||
| Unrealized (loss)/gain on fair value of warrants | 160,063 | ||||
|
June 5, 2009 Financing [Member]
|
|||||
| Unrealized (loss)/gain on fair value of warrants | (328,937) | ||||
|
Series I Warrants [Member] | June 5, 2009 Financing [Member]
|
|||||
| Unrealized (loss)/gain on fair value of warrants | 707,111 | ||||
|
Series II Warrants [Member] | June 5, 2009 Financing [Member]
|
|||||
| Unrealized (loss)/gain on fair value of warrants | (2,191,175) | ||||
|
Series III Warrants [Member] | June 5, 2009 Financing [Member]
|
|||||
| Unrealized (loss)/gain on fair value of warrants | 47 | 85,711 | 30,069 | 71,089 | 1,300,958 |
|
Warrants To Institutional Investors [Member] | October 23, 2009 Financing [Member]
|
|||||
| Unrealized (loss)/gain on fair value of warrants | (15,355) | 129,220 | 26,040 | 87,089 | (83,720) |
|
Warrants To Institutional Investors [Member] | June 30, 2010 Financing [Member]
|
|||||
| Unrealized (loss)/gain on fair value of warrants | 200 | 92,400 | 9,000 | 74,600 | 1,797,600 |
|
Warrants To Institutional Investors [Member] | March 31, 2011 Financing [Member]
|
|||||
| Unrealized (loss)/gain on fair value of warrants | (116,666) | 478,666 | (20,000) | 294,333 | 2,500,333 |
|
Warrants To Institutional Investors [Member] | December 4, 2012 Financing [Member]
|
|||||
| Unrealized (loss)/gain on fair value of warrants | (1,004,301) | (837,321) | (627,111) | ||
|
Warrants To Placement Agent [Member] | June 5, 2009 Financing [Member]
|
|||||
| Unrealized (loss)/gain on fair value of warrants | (53) | 8,668 | 2,802 | 7,003 | 107,190 |
|
Warrants To Placement Agent [Member] | October 23, 2009 Financing [Member]
|
|||||
| Unrealized (loss)/gain on fair value of warrants | 1,298 | 41 | 570 | (135,938) | |
|
Warrants To Placement Agent [Member] | June 30, 2010 Financing [Member]
|
|||||
| Unrealized (loss)/gain on fair value of warrants | 2,160 | 20 | 2,140 | 180,080 | |
|
Warrants To Placement Agent [Member] | March 31, 2011 Financing [Member]
|
|||||
| Unrealized (loss)/gain on fair value of warrants | 4,125 | 83 | 3,563 | 97,667 | |
|
Warrants To Placement Agent [Member] | December 4, 2012 Financing [Member]
|
|||||
| Unrealized (loss)/gain on fair value of warrants | $ (70,528) | $ (48,488) | $ (32,616) | ||