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Commitments And Contingencies (Schedule of Investments Under Securities Purchase Agreement And RELO) (Details) (USD $)
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0 Months Ended | 0 Months Ended | 3 Months Ended | 3 Months Ended | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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Dec. 07, 2012
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Dec. 04, 2012
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Mar. 31, 2011
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Jan. 19, 2011
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Jun. 30, 2010
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Feb. 12, 2010
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Oct. 23, 2009
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Sep. 21, 2009
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Jun. 05, 2009
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Mar. 20, 2008
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Dec. 18, 2007
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May 13, 2006
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Dec. 02, 2005
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Aug. 08, 2005
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May 10, 2001
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Mar. 31, 2013
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Dec. 31, 2012
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Jan. 19, 2011
Teva Pharmaceutical Industries, Ltd. [Member]
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Sep. 21, 2009
Teva Pharmaceutical Industries, Ltd. [Member]
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Mar. 31, 2013
Teva Pharmaceutical Industries, Ltd. [Member]
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Dec. 31, 2012
Teva Pharmaceutical Industries, Ltd. [Member]
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Mar. 31, 2013
Teva Pharmaceutical Industries, Ltd. [Member]
September 21, 2009 Investment [Member]
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Mar. 31, 2013
Teva Pharmaceutical Industries, Ltd. [Member]
January 19, 2011 Investment [Member]
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Mar. 31, 2013
Teva Pharmaceutical Industries, Ltd. [Member]
December 7, 2012 Investment [Member]
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Mar. 31, 2013
Teva Pharmaceutical Industries, Ltd. [Member]
December 27, 2012 Investment [Member]
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| Investment amount | $ 9,126,000 | $ 3,500,000 | $ 3,950,000 | $ 750,000 | $ 926,000 | ||||||||||||||||||||
| Shares issued | 2,083,333 | 19,130,435 | 8,333,333 | 2,334,515 | 6,666,667 | 300,000 | 6,072,383 | 3,102,837 | 2,857,143 | 642,858 | 4,857,159 | 3,850,000 | 650,000 | 4,175,000 | 3,600,000 | 2,334,515 | 3,102,837 | 7,520,685 | 3,102,837 | 2,334,515 | 2,083,333 | ||||
| Proceeds Remaining in Restricted Cash | 919,680 | 178,301 | 741,379 | ||||||||||||||||||||||
| Deferred Research and Development Arrangement (note 8) | $ 1,472,629 | $ 1,626,000 | $ 741,379 | $ 876,000 | $ 741,379 | ||||||||||||||||||||