Quarterly Financial Information-Unaudited (Tables)

12 Months Ended

Dec. 31, 2018

Quarterly Financial Information Disclosure [Abstract]

Schedule of Quarterly Financial Information

	Quarter Ended
	March 31			June 30			September 30			December 31
2018
Service revenue	$	3,507		$	3,336		$	2,787		$	3,144
Subscription revenue		1,578			1,444			1,532			1,487
License revenue (1)		528			658			595			596
Total revenue		5,613			5,438			4,914			5,227
Total cost revenue		2,185			2,205			1,935			2,101
Gross profit		3,428			3,233			2,979			3,126
Gross profit percent, service revenue		55	%		54	%		53	%		52	%
Gross profit percent, subscription revenue		69	%		65	%		69	%		71	%
Gross profit percent, license revenue		73	%		77	%		74	%		74	%
Gross profit percent, total		61	%		59	%		61	%		60	%
Sales and marketing	$	4,887		$	4,757		$	4,741		$	4,755
Research, development and engineering		3,947			4,058			4,069			3,897
General and administrative		2,632			2,416			2,447			2,402
Intellectual property		315			305			328			334
Operating loss		(8,353	)		(8,303	)		(8,606	)		(8,262	)
Net loss		(8,112	)		(8,038	)		(8,342	)		(8,014	)
Earnings (loss) per common share:
Loss per common share—basic	$	(0.72	)	$	(0.71	)	$	(0.73	)	$	(0.70	)
Loss per common share—diluted	$	(0.72	)	$	(0.71	)	$	(0.73	)	$	(0.70	)
Weighted average common shares outstanding—basic		11,266			11,337			11,394			11,443
Weighted average common shares outstanding—diluted		11,266			11,337			11,394			11,443

	Quarter Ended
	March 31			June 30			September 30			December 31
2017
Service revenue	$	3,696		$	3,253		$	2,986		$	3,001
Subscription revenue		1,445			1,420			1,306			1,348
License revenue (1)		950			914			4,385			509
Total revenue		6,091			5,587			8,677			4,858
Total cost revenue		2,309			2,120			2,072			2,057
Gross profit		3,782			3,467			6,605			2,801
Gross profit percent, service revenue		56	%		55	%		55	%		55	%
Gross profit percent, subscription revenue		62	%		62	%		53	%		58	%
Gross profit percent, license revenue		88	%		87	%		97	%		74	%
Gross profit percent, total		62	%		62	%		76	%		58	%
Sales and marketing	$	3,992		$	3,997		$	4,075		$	4,572
Research, development and engineering		3,459			3,936			4,108			3,932
General and administrative		2,385			2,239			2,442			2,614
Intellectual property		392			345			387			345
Operating loss		(6,446	)		(7,050	)		(4,407	)		(8,662	)
Net loss		(6,218	)		(6,943	)		(4,240	)		(8,370	)
Earnings (loss) per common share:
Loss per common share—basic	$	(0.61	)	$	(0.68	)	$	(0.39	)	$	(0.76	)
Loss per common share—diluted	$	(0.61	)	$	(0.68	)	$	(0.39	)	$	(0.76	)
Weighted average common shares outstanding—    basic		10,161			10,266			10,797			11,046
Weighted average common shares outstanding—    diluted		10,161			10,266			10,797			11,046
(1) In the third quarter of 2017, the Company recognized a one-time $3,500 upfront license fee from an existing licensee.