STOCK-BASED COMPENSATION (Tables)

3 Months Ended

Apr. 30, 2019

STOCK-BASED COMPENSATION

Summary of stock based compensation expense

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

	For the three months ended
	April 30,
	2019		2018
Research and development	$	103	$	200
Sales and marketing		21		129
General and administrative		67		264
Total	$	191	$	593

Black-Scholes option pricing model fair value assumptions

	For the three months ended
	April 30,
	2019	2018
Expected volatility	68.3%	84.0%
Expected term in years	4.0	4.0
Risk-free interest rate	2.51%	2.43%
Expected dividend yield	—	—