CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $)	Sep. 30, 2014	Dec. 31, 2013
Preferred stock, par value	$ 0.001	$ 0.001
Preferred stock, shares authorized	10,000,000	10,000,000
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	100,000,000	100,000,000
Common stock, shares issued	23,937,559	11,505,039
Common stock, shares outstanding	23,937,559	11,505,039
Redeemable Convertible Preferred Stock [Member]
Preferred stock, par value	$ 0.0001	$ 0.0001
Preferred stock, shares authorized	10,000,000	10,000,000
Preferred stock, shares issued	0	6,176,748
Preferred stock, shares outstanding	0	6,176,748
Temporary equity, liquidation preference	$ 0	$ 19,827,361
Series A Convertible Preferred Stock [Member]
Preferred stock shares designated	6,176,748
Preferred stock, shares issued	3,826,990
Preferred stock, shares outstanding	3,826,990
Series B Convertible Preferred Stock [Member]
Preferred stock shares designated	2,750
Preferred stock, shares issued	1,102
Preferred stock, shares outstanding	1,102