Condensed Consolidated Statements of Operations and Comprehensive Loss (Unaudited) (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:
License revenue				$ 5,000
Operating expenses:
Research and development	7,088	1,155	13,918	4,025
General and administrative	1,495	880	2,946	2,126
Total operating expenses	8,583	2,035	16,864	6,151
Other income (expense):
Interest expense	(168)	(352)	(376)	(751)
Interest income	12		30
Gain on revaluation of warrant liability	20		49
Other income (expense), net	(31)	(255)	(48)	(356)
Total other income (expense)	(167)	(607)	(345)	(1,107)
Net loss before income taxes	(8,750)	(2,642)	(17,209)	(2,258)
Income tax expense				(500)
Net loss	(8,750)	(2,642)	(17,209)	(2,758)
Basic and diluted loss per share (in Dollars per share)	$ (0.53)	$ (0.84)	$ (1.05)	$ (0.88)
Weighted average number of outstanding shares – basic and diluted (in Shares)	16,493	3,150	16,323	3,150
Other comprehensive income (loss):
Foreign currency translation adjustment		191		299
Unrealized gain on securities available-for-sale	1		4
Total other comprehensive loss	$ (8,749)	$ (2,451)	$ (17,205)	$ (2,459)