STOCK-BASED COMPENSATION (Details) (USD $)
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3 Months Ended | 125 Months Ended | |
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Mar. 31, 2013
|
Mar. 31, 2012
|
Mar. 31, 2013
|
|
Total stock-based compensation | $ 425,898 | $ 417,353 | $ 4,784,068 |
Employee and Director Stock Option [Member]
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Total stock-based compensation | 417,877 | 327,012 | 4,384,930 |
Employee and Director Stock Option [Member] | Research and Development Expense [Member]
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Total stock-based compensation | 105,838 | 78,044 | 914,099 |
Employee and Director Stock Option [Member] | General and Administrative Expense [Member]
|
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Total stock-based compensation | 312,039 | 248,968 | 3,470,831 |
Non Employee Consultant Stock Option [Member]
|
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Total stock-based compensation | 8,021 | 90,341 | 399,138 |
Non Employee Consultant Stock Option [Member] | Research and Development Expense [Member]
|
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Total stock-based compensation | 1,011 | 47,014 | 117,047 |
Non Employee Consultant Stock Option [Member] | General and Administrative Expense [Member]
|
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Total stock-based compensation | $ 7,010 | $ 43,327 | $ 282,091 |