Sales and Major Customers (Tables)

12 Months Ended

Jan. 31, 2020

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,
	2020		2019		2018
UK/Europe	$	20,366	$	15,200	$	11,835
Canada	3,731		2,049		807
Latin America	2,663		1,267		1,354
Asia/South Pacific	6,871		13,555		16,768
Eurasia	290		1,803		332
Other	1,942		2,723		5,834
Total	$	35,863	$	36,597	$	36,930