STATEMENTS OF OPERATIONS (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Expenses:
Research and development	$ 1,568,740	$ 1,008,469	$ 6,537,617	$ 3,020,884
General and administrative	868,301	313,421	1,827,658	869,207
Loss from operations	(2,437,041)	(1,321,890)	(8,365,275)	(3,890,091)
Change in fair value of warrant liability	794,342	91,583	1,191,514	91,583
Interest income	3,794	6,368	6,330	13,856
Interest expense	(29,461)		(58,617)	(90,577)
Net loss	(1,668,366)	(1,223,939)	(7,226,048)	(3,875,229)
Cumulative preferred stock dividends	(372,345)	(1,028,837)	(2,545,334)	(2,754,872)
Net loss applicable to common stockholders	$ (2,040,711)	$ (2,252,776)	$ (9,771,382)	$ (6,630,101)
Per share information:
Net loss per share of common stock-basic and diluted (in dollars per share)	$ (0.22)	$ (4.58)	$ (2.79)	$ (13.50)
Basic and diluted weighted average shares outstanding (in shares)	9,449,355	492,319	3,499,808	490,972