Revenue (Tables)

3 Months Ended

Mar. 31, 2021

Revenue from Contract with Customer [Abstract]

Disaggregation of revenue

The Company combines its products and services into three product categories and three geographic regions, based on customer location, as follows (in thousands):

	Three Months Ended  March 31,
	2021		2020
Software licenses and appliances	$	108	$	1,540
Service
Subscription, maintenance and support	4,979		4,160
Professional services and other	733		527
Total service	5,712		4,687
Total revenues	$	5,820	$	6,227

	Three Months Ended  March 31,
	2021		2020
North America	$	3,938	$	4,050
Europe	1,621		1,874
Asia	261		303
Total	$	5,820	$	6,227