Condensed consolidated statements of operations and comprehensive loss - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Operating expenses
Research and development	$ 3,619	$ 4,551	$ 8,186	$ 6,431
General and administrative	1,173	1,081	2,646	1,816
Total operating expenses	4,792	5,632	10,832	8,247
Other income (expenses)
Bank charges and financing costs	(5)	(2)	(10)	(456)
Change in fair value of derivative liabilities (Note 7)	13	14	6	928
Amortization and extinguishment of remaining discount on preferred shares upon conversion of preferred shares				(1,884)
Other income (expenses)	34	196	(326)	6
Total other income (expenses)	42	208	(330)	(1,406)
Net loss before income taxes	(4,750)	(5,424)	(11,162)	(9,653)
Net loss	$ (4,750)	$ (5,424)	$ (11,162)	$ (9,653)
Net loss per common stock - basic and diluted (Note 6)	$ (0.44)	$ (0.51)	$ (1.04)	$ (1.43)
Basic and diluted weighted average common stock outstanding (Note 6)	10,723,584	10,675,260	10,717,808	6,606,091
Comprehensive loss:
Net loss	$ (4,750)	$ (5,424)	$ (11,162)	$ (9,653)
Other comprehensive income - unrealized gain on available for sale securities	1	1	8	1
Comprehensive loss	$ (4,749)	$ (5,423)	$ (11,154)	$ (9,652)