Share Based Compensation

3 Months Ended

Apr. 30, 2019

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
	April 30, 2019		April 30, 2018
Cost of sales	$	76	$	80
Research and development expenses	35		31
Selling, general, and administrative expenses	671		676
Total stock-based compensation expense	$	782	$	787