STOCK-BASED COMPENSATION (Tables)

3 Months Ended

Apr. 30, 2017

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,
	2017		2016
Research and development	$	108	$	76
Sales and marketing		82		84
General and administrative		195		113
Total	$	385	$	273

Black-Scholes option pricing model fair value assumptions

	For the three months ended
	April 30,
	2017
Expected volatility	95.50% - 96.78%
Expected term in years	6.0
Risk-free interest rate	1.80% - 1.97%
Expected dividend yield	—