Segments (Tables)

12 Months Ended

Dec. 31, 2019

Segment Reporting [Abstract]

Summary of the operating segments

The following table presents a summary of the operating segments:

	Years ended December 31,
(in thousands)	2019			2018			2017
Revenue
Product	$	92,561		$	97,447		$	91,585
Service	87,940			82,183			74,404
Total revenue	180,501			179,630			165,989
Cost of revenue
Product	29,039			27,425			27,244
Service	42,363			40,318			37,683
Total cost of revenue	71,402			67,743			64,927
Gross profit
Product	63,522			70,022			64,341
Service	45,577			41,865			36,721
Total gross profit	109,099			111,887			101,062
Operating expenses	123,222			118,192			111,762
(Loss) income from operations	(14,123		)	(6,305		)	(10,700		)
Interest income (expense), net and other	(3,837		)	(3,720		)	562
Loss before income taxes	$	(17,960	)	$	(10,025	)	$	(10,138	)

Summary of revenue by product line

The following tables present the Company’s revenue by product line, as well as revenue and long-lived assets by geographic region.  

	Years ended December 31,
(in thousands)	2019		2018		2017
Revenue
Product
Device	$	61,224	$	60,130	$	61,746
Software	31,337		37,317		29,839
Total product	92,561		97,447		91,585
Service
Maintenance and support	68,846		62,267		52,342
Professional services and training	19,094		19,916		22,062
Total service	87,940		82,183		74,404
Total revenue	$	180,501	$	179,630	$	165,989

Schedule of revenue by geographic region

The Company’s revenue by geographic region, based on customer location, is summarized as follows:

	Years ended December 31,
(in thousands)	2019		2018		2017
Revenue
United States	$	164,827	$	161,338	$	148,993
International	15,674		18,292		16,996
Total revenue	$	180,501	$	179,630	$	165,989

Schedule of Geographic Disclosure of Long-Lived Assets

The Company’s tangible long-lived assets by geographic region, consisting of net property and equipment, are summarized as follows:

	December 31,
(in thousands)	2019		2018		2017
Property and equipment, net
United States	$	6,364	$	6,265	$	4,621
International	2,297		1,203		1,130
Total property and equipment, net	$	8,661	$	7,468	$	5,751