Stockholders' Equity (Deficit) (Details)	9 Months Ended
	Sep. 30, 2015 $ / shares shares
Shares
Outstanding as of September 30, 2015	4,910,305
Options vested and exercisable as of September 30, 2015	2,616,891
Weighted Averaged Exercise Price
Outstanding as of September 30, 2015 | $ / shares	$ 0.40
Options vested and exercisable as of September 30, 2015 | $ / shares	$ 0.27
Stock Options [Member]
Shares
Outstanding January 1, 2015	1,937,979
Granted	4,224,370
Exercised	(33,333)
Forfeited or cancelled	(1,690,239)
Outstanding as of September 30, 2015	4,438,777
Options vested and exercisable as of September 30, 2015	2,616,891
Options vested and expected to vest	4,438,777
Weighted Averaged Exercise Price
Outstanding at January 1, 2015 | $ / shares	$ 0.08
Granted | $ / shares	0.56
Exercised | $ / shares	0.08
Forfeited or cancelled | $ / shares	0.52
Outstanding as of September 30, 2015 | $ / shares	0.37
Options vested and exercisable as of September 30, 2015 | $ / shares	0.27
Options vested and expected to vest | $ / shares	$ 0.37