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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 3) (USD $) | 3 Months Ended | 9 Months Ended | 206 Months Ended
--- | --- | --- | ---
Sep. 30, 2013 | Sep. 30, 2012 | Sep. 30, 2013 | Sep. 30, 2012 | Sep. 30, 2013
Income Taxes |  |  |  |  |
Income tax benefit, net | $ (730,000) | $ (419,000) | $ (1,218,000) | $ (714,000) | $ (21,013,000)
Research and development tax credits from the HRMC |  |  | 1,200,000 |  |
Net loss per common share |  |  |  |  |
Total shares excluded from calculation |  |  | 2,219,143 | 3,002,901 |
Taxes recorded on items of other comprehensive income |  |  | $ 0 |  |
Stock options |  |  |  |  |
Net loss per common share |  |  |  |  |
Total shares excluded from calculation |  |  | 487,719 | 480,415 |
Restricted stock units |  |  |  |  |
Net loss per common share |  |  |  |  |
Total shares excluded from calculation |  |  | 119,248 | 40,121 |
Convertible preferred stock |  |  |  |  |
Net loss per common share |  |  |  |  |
Total shares excluded from calculation |  |  | 20,381 | 73,747 |
Contingently issuable shares and common stock warrants associated with Economic Rights |  |  |  |  |
Net loss per common share |  |  |  |  |
Total shares excluded from calculation |  |  |  | 435,187 |
Common stock warrants |  |  |  |  |
Net loss per common share |  |  |  |  |
Total shares excluded from calculation |  |  | 1,591,795 | 1,973,431 |

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