Share Based Compensation

9 Months Ended

Oct. 31, 2018

Share-based Compensation [Abstract]

Share Based Compensation

SHARE-BASED COMPENSATION

Share-based compensation expense is recognized based on the fair value of the share-based awards expected to vest during the period.

The share-based compensation expense was as follows:

	Three Months Ended				Nine Months Ended
	October 31, 2018		October 31, 2017		October 31, 2018		October 31, 2017
Cost of sales	$	99	$	62	$	282	$	175
Research and development expenses	32		14		99		82
Selling, general, and administrative expenses	696		853		2,727		2,604
Total stock-based compensation expense	$	827	$	929	$	3,108	$	2,861