STOCK-BASED COMPENSATION (Tables)

9 Months Ended

12 Months Ended

Oct. 31, 2019

Jan. 31, 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				For the nine months ended
	October 31,				October 31,
	2019		2018		2019		2018
Research and development	$	30	$	166	$	218	$	525
Sales and marketing		12		114		45		355
General and administrative		187		438		334		877
Total	$	229	$	718	$	597	$	1,757

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

	Year ended
	January 31,
	2019		2018
Research and development	$	654	$	545
Sales and marketing		414		393
General and administrative		993		949
Total	$	2,061	$	1,887

Black-Scholes option pricing model fair value assumptions

The following assumptions were used to calculate the estimated fair value of awards granted for the periods ended:

	For the three months ended		For the nine months ended
	October 31,		October 31,
	2019	2018	2019	2018
Expected volatility	—	78.8% - 91.0%	68.3% - 70.8%	78.8% - 91.0%
Expected term in years	—	4.0 - 8.6	4.0	4.0 - 8.6
Risk-free interest rate	—	2.72% - 3.10%	1.88% - 2.51%	2.72% - 3.10%
Expected dividend yield	—	—	—	—

	Year ended
	January 31,
	2019	2018
Expected volatility	78.8% - 91.0%	83.9% - 96.8%
Expected term in years	4.0	6.0 - 9.39
Risk-free interest rate	2.43% - 2.98%	1.80% - 2.70%
Expected dividend yield	—	—