Condensed Consolidated Statements of Operations and Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Revenue:
Revenue	$ 1,503	$ 2,310
Operating expenses:
Research and development	3,408	3,879
General and administrative	2,010	678
Total operating expenses	5,418	4,557
Operating loss	(3,915)	(2,247)
Other income and (expenses):
Bargain purchase gain	6,988
Interest income	5	13
Interest expense	(437)	(744)
Non-cash interest expense on liability related to sale of future royalties	(298)
(Loss) gain on revaluation of financial instruments	(3)	182
Foreign exchange gain, net	2
Total other income and (expenses)	6,257	(549)
Net income (loss) before income taxes	2,342	(2,796)
Provision for income taxes	28
Net income (loss)	2,314	(2,796)
Series B and C preferred dividend	(339)	(710)
Net comprehensive income (loss) attributable to common stockholders	$ 1,975	$ (3,506)
Net income (loss) per share – basic (in Dollars per share)	$ 0.54	$ (25.84)
Net income (loss) per share - diluted (in Dollars per share)	$ 0.49	$ (25.84)
Shares used to compute net income (loss) per share - basic (in Shares)	3,656,360	135,658
Shares used to compute net income (loss) per share - diluted (in Shares)	5,299,751	135,658
Government Contract [Member]
Revenue:
Revenue	$ 610	$ 2,310
Royalty [Member]
Revenue:
Revenue	$ 893