Stock-Based Compensation (Tables)

1 Months Ended

Jan. 31, 2015

Stock-Based Compensation

Summary of stock based compensation expense

The following table summarizes the stock-based compensation expenses included in our Statement of Operations and Comprehensive Loss for the months ended January 31, 2015 and 2014 and the years ended December 31, 2014 and 2013 (in thousands):

	Month ended January 31,				Years ended December 31,
	2015		2014		2014		2013
			(Unaudited)
Research and development	$	27	$	8	$	228	$	30
Sales and marketing	40		1		147		7
General and administrative expenses	32		2		818		21
Stock-based compensation expense, net of tax	$	99	$	11	$	1,193	$	58

Black scholes option pricing model fair value assumptions

	Month ended January 31		Years ended December 31,
	2015		2014		2013
Expected volatility	82.1	%	82.2	%	82.1%
Expected term in years	6.0		6.0		5.51 - 6.08
Risk-free interest rate	1.56	%	1.74	%	0.61% - 1.62%
Expected dividend yield	—	%	—	%	—%