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Warrants (Schedule Of Unrealized Gains Losses On Fair Value Of Warrants) (Details) (USD $)
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3 Months Ended | 9 Months Ended | 138 Months Ended | ||
|---|---|---|---|---|---|
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Sep. 30, 2012
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Sep. 30, 2011
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Sep. 30, 2012
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Sep. 30, 2011
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Sep. 30, 2012
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| Unrealized (loss) gain on fair value of warrants | $ (1,195,932) | $ 1,866,249 | $ (655,545) | $ 1,993,469 | $ 3,020,560 |
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December 18, 2007 Financing [Member]
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| Unrealized (loss) gain on fair value of warrants | 50,722 | ||||
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March 20, 2008 Financing [Member]
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| Unrealized (loss) gain on fair value of warrants | 92,704 | 160,063 | |||
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June 5, 2009 Financing [Member]
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| Unrealized (loss) gain on fair value of warrants | (328,937) | ||||
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Series I Warrants [Member] | June 5, 2009 Financing [Member]
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| Unrealized (loss) gain on fair value of warrants | 707,111 | ||||
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Series II Warrants [Member] | June 5, 2009 Financing [Member]
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| Unrealized (loss) gain on fair value of warrants | (2,191,175) | ||||
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Series III Warrants [Member] | June 5, 2009 Financing [Member]
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| Unrealized (loss) gain on fair value of warrants | (172,355) | 314,066 | (101,266) | 265,222 | 1,115,178 |
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Warrants To Institutional Investors [Member] | October 23, 2009 Financing [Member]
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| Unrealized (loss) gain on fair value of warrants | (176,511) | 292,712 | (89,422) | 114,727 | (254,949) |
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Warrants To Institutional Investors [Member] | June 30, 2010 Financing [Member]
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| Unrealized (loss) gain on fair value of warrants | (187,200) | 356,200 | (112,600) | 590,400 | 1,598,400 |
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Warrants To Institutional Investors [Member] | March 31, 2011 Financing [Member]
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| Unrealized (loss) gain on fair value of warrants | (624,000) | 816,000 | (329,667) | 876,666 | 1,952,999 |
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Warrants To Placement Agent [Member] | June 5, 2009 Financing [Member]
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| Unrealized (loss) gain on fair value of warrants | (16,121) | 26,799 | (9,118) | 23,020 | 89,866 |
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Warrants To Placement Agent [Member] | October 23, 2009 Financing [Member]
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| Unrealized (loss) gain on fair value of warrants | (1,586) | 3,528 | (1,016) | (107,659) | (137,668) |
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Warrants To Placement Agent [Member] | June 30, 2010 Financing [Member]
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| Unrealized (loss) gain on fair value of warrants | (7,200) | 25,340 | (5,060) | 82,640 | 172,700 |
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Warrants To Placement Agent [Member] | March 31, 2011 Financing [Member]
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| Unrealized (loss) gain on fair value of warrants | $ (10,959) | $ 31,604 | $ (7,396) | $ 55,749 | $ 86,250 |