Sales and Major Customers (Tables)

12 Months Ended

Jan. 31, 2019

Segment Reporting [Abstract]

Summary of Company's Revenues from Customers by Geographic Region, Outside the U.S.

A summary of the Company’s revenues from customers by geographic region, outside the U.S., is as follows (in thousands):

	Years Ended January 31,
	2019		2018		2017
UK/Europe	$	15,200	$	11,835	$	14,577
Canada	2,049		807		1,891
Latin America	1,267		1,354		2,983
Asia/South Pacific	13,555		16,768		10,348
Eurasia	1,803		332		3,120
Other	2,723		5,834		1,828
Total	$	36,597	$	36,930	$	34,747