Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Revenue:
Service	$ 3,507	$ 3,696
Subscription	1,578	1,445
License	528	950
Total revenue	5,613	6,091
Cost of revenue:
Service	1,563	1,635
Subscription	482	556
License	140	118
Total cost of revenue	2,185	2,309
Gross profit	3,428	3,782
Operating expenses:
Sales and marketing	4,887	3,992
Research, development and engineering	3,947	3,459
General and administrative	2,632	2,385
Intellectual property	315	392
Total operating expenses	11,781	10,228
Operating loss	(8,353)	(6,446)
Other income, net	252	118
Loss before income taxes	(8,101)	(6,328)
Benefit (provision) for income taxes	(11)	110
Net loss	$ (8,112)	$ (6,218)
Earnings (loss) per common share:
Loss per common share — basic	$ (0.72)	$ (0.61)
Loss per common share — diluted	$ (0.72)	$ (0.61)
Weighted average common shares outstanding — basic	11,266	10,161
Weighted average common shares outstanding — diluted	11,266	10,161