Share Based Compensation

3 Months Ended

Apr. 30, 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, net of estimated forfeitures.

The share-based compensation expense was as follows:

	Three Months Ended
	April 30, 2018		April 30, 2017
Cost of sales	$	80	$	58
Research and development expenses	31		37
Selling, general, and administrative expenses	676		696
Total stock-based compensation expense	$	787	$	791