CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Revenues:
Product sales	$ 4,432	$ 3	$ 4,432	$ 11
Total revenues	4,432	3	4,432	11
Costs and expenses:
Cost of product sales	5,009	1	5,009	3
Gross profit (loss)	(577)	2	(577)	8
Research and development	4,364	3,676	7,635	9,214
Selling, general and administrative	3,581	1,560	4,954	3,193
Total operating expenses	7,945	5,236	12,589	12,407
Loss from operations	(8,522)	(5,234)	(13,166)	(12,399)
Other income (expense):
(Increase) decrease in fair value of warrants	248	345	(1,104)	1,964
Bargain purchase gain	3,634		3,634
Interest income	4	3	6	8
Interest expense	(2)	(3)	(3)	(6)
Total other income (expense)	3,884	345	2,533	1,966
Net loss	$ (4,638)	$ (4,889)	$ (10,633)	$ (10,433)
Net loss per share attributable to common shareholders (Basic and Diluted) (see note 12) (in dollars per share)	$ (0.94)	$ (2.72)	$ (2.18)	$ (5.75)
Weighted average number of common shares outstanding (Basic and Diluted)	6,518	2,283	6,195	2,263