STOCK-BASED COMPENSATION (Tables)

6 Months Ended

12 Months Ended

Jul. 31, 2016

Jan. 31, 2016

STOCK-BASED COMPENSATION

Summary of stock based compensation expense

The following table summarizes the stock-based compensation expenses included in the unaudited condensed consolidated statement of operations and comprehensive loss (in thousands):

	For the three months ended July 31,				For the six months ended July 31,
	2016		2015		2016		2015
Research and development	$	129	$	39	$	205	$	125
Sales and marketing	98		83		182		207
General and administrative expenses	197		202		310		292
Total	$	424	$	324	$	697	$	624

        The following table summarizes the stock-based compensation expenses included in the Company's Statement of Operations and Comprehensive Loss for the periods ended (in thousands):

	Year ended January 31,		One month ended January 31,		Year ended December 31,
	2016		2015		2014
Research and development	$	256	$	27		228
Sales and marketing		443		40		147
General and administrative		515		32		818
Total	$	1,214	$	99	$	1,193

Black-Scholes option pricing model fair value assumptions

	For the three months ended July 31,		For the six months ended July 31,
	2016	2015	2016	2015
Expected volatility	97.0% - 98.6%	82.6%	97.0% - 98.6%	82.6%
Expected term in years	6.5	6.0	6.5	6.0
Risk-free interest rate	1.14% - 1.28%	1.71%	1.14% - 1.28%	1.62% - 1.71%
Expected dividend yield	—	—	—	—

	Year ended January 31,	One month ended January 31,			Year ended December 31,
	2016	2015			2014
Expected volatility	81.3% - 82.6%		82.1	%		82.2	%
Expected term in years	6.0		6.0			6.0
Risk-free interest rate	1.57% - 2.26%		1.56	%		1.74	%
Expected dividend yield	—%		—	%		—	%