Stockholders' Equity (Deficit) (Tables)

9 Months Ended

Sep. 30, 2015

Stockholders' Equity (Deficit) [Abstract]

Schedule of stock option plan

	Shares			Weighted Averaged Exercise Price
Outstanding as of January 1, 2015		1,937,979		$	0.08
Granted		4,224,370		$	0.56
Exercised		(33,333	)	$	0.08
Forfeited or cancelled		(1,690,239	)	$	0.52
Outstanding as of September 30, 2015		4,438,777		$	0.37
Options vested and exercisable as of September 30, 2015		2,616,891		$	0.27
Options vested and expected to vest		4,438,777		$	0.37

Schedule of options outstanding and vested and exercisable

		Options Outstanding						Options Exercisable
Exercise  Price		Number Outstanding		Average Remaining Contractual Life (Years)		Weighted-Average Exercise Price		Number Outstanding		Weighted-Average Exercise Price
$	0.08		1,851,729		8.8	$	0.08		1,586,094	$	0.08
$	0.55		2,562,048		9.4	$	0.55		1,028,714	$	0.55
$	2.36		25,000		9.7	$	2.36		2,083	$	2.36
			4,438,777		9.1	$	0.37		2,616,891	$	0.27

Summary of assumptions to estimated grant date fair value calculations for options granted

	Three Months Ended	Nine Months Ended September 30,
	September 30, 2014	2015	2014
Dividend yield	0.0%	0.0%	0.0%
Volatility	50.0%	37.7%	50.0%
Average risk-free rate	1.70% - 2.50%	1.75% - 1.91%	1.70% - 2.50%
Expected term, in years	5.10 - 10.00	5.00 - 5.77	5.10 - 10.00