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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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Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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