CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS (USD $)	3 Months Ended		12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
Revenue	$ 0	$ 22,000	$ 325,000
Operating expenses
Research and development	1,006,000	551,000	6,502,000
General and administrative	1,580,000	684,000	6,259,000
Total operating expenses	2,586,000	1,235,000	12,761,000
Loss from operations	(2,586,000)	(1,213,000)	(12,436,000)
Loss on derivative liabilities	(7,558,000)	0	(40,562,000)
Amortization of note discount	0	(303,000)	(2,630,000)
Interest expense, net	0	(96,000)	(233,000)
Net Loss	(10,144,000)	(1,612,000)	(55,861,000)
Deemed dividend on preferred stock	(8,464,000)	0	(8,464,000)
Net loss available for common stockholders	(18,608,000)	(1,612,000)	(64,325,000)
Net loss per share - basic & diluted (in dollars share)	$ (0.10)	$ (0.02)	$ (0.64)
Weighted average number of shares of common stock outstanding - basic & diluted (in shares)	182,535,562	66,908,810	101,201,753
Other comprehensive gain (loss)
Net unrealized gain (loss) on foreign currency translations	(4,000)	(113,000)	41,000
Comprehensive loss	$ (10,148,000)	$ (1,725,000)	$ (55,820,000)