Condensed consolidated and combined statements of operations and comprehensive loss (Unaudited) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Operating expenses
Research and development	$ 4,551,220	$ 1,247,103	$ 6,430,734	$ 1,820,070
General and administrative	1,081,173	369,757	1,815,997	793,622
Total operating expenses	5,632,393	1,616,860	8,246,731	2,613,692
Other income (expenses)
Bank charges and financing costs	(2,388)	(1,769)	(456,196)	(3,603)
Change in fair value of derivative liabilities (Note 8)	14,501	947,886	928,430	947,886
Amortization and extinguishment of remaining discount on preferred shares upon conversion of preferred shares		(119,450)	(1,884,233)	(144,888)
Other income (expenses)	195,521	(21,309)	6,293	(7,472)
Total other income (expenses)	207,634	805,358	(1,405,706)	791,923
Net loss before income taxes	(5,424,759)	(811,502)	(9,652,437)	(1,821,769)
Income tax
Net loss	(5,424,759)	(811,502)	(9,652,437)	(1,821,769)
Accretion for liquidation preference on preferred stock		(1,397,863)	(1,132,893)	(2,555,728)
Accretion for share issuance costs on preferred stock		(42,130)	(19,551)	(86,437)
Tax expense on preferred stock		(130,609)	(100,291)	(476,700)
Reversal of tax payable on preferred stock due to conversion of preferred stock			1,897,702
Extinguishment of remaining share issuance costs due to conversion of preferred stock			(439,227)
Total loss attributable to common stockholders	(5,424,759)	(2,382,104)	(9,446,697)	(4,940,634)
Basic and diluted loss per common stock (Note 7)	$ (0.51)	$ (7.89)	$ (1.43)	$ (16.37)
Basic and diluted weighted average common stock outstanding (Note 7)	10,675,260	301,745	6,606,091	301,745
Comprehensive loss:
Net loss	(5,424,759)	(811,502)	(9,652,437)	(1,821,769)
Other comprehensive income - unrealized gain on available for sale securities	880		880
Comprehensive loss	$ (5,423,879)	$ (811,502)	$ (9,651,557)	$ (1,821,769)