Condensed Consolidated Statements Of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Revenues:
Software licenses and appliances	$ 1,822	$ 1,154	$ 3,971	$ 3,952
Service	5,751	5,956	16,967	18,409
Total revenues	7,573	7,110	20,938	22,361
Cost of revenues:
Software licenses and appliances	916	563	1,778	1,932
Service	1,995	2,294	6,003	7,697
Total cost of revenues	2,911	2,857	7,781	9,629
Gross profit	4,662	4,253	13,157	12,732
Operating expenses:
Research and development	1,769	1,986	5,676	6,746
Sales and marketing	2,509	2,435	7,484	8,945
General and administrative	2,083	2,109	6,552	7,344
Amortization of purchased intangibles	226	221	675	674
Total operating expenses	6,587	6,751	20,387	23,709
Operating loss	(1,925)	(2,498)	(7,230)	(10,977)
Other income (expense):
Interest expense, net	(343)	(13)	(994)	(40)
Change in fair value of warrant liability	15	0	(52)	0
Other, net	(166)	(13)	(345)	(24)
Total other expense, net	(494)	(26)	(1,391)	(64)
Loss before income taxes	(2,419)	(2,524)	(8,621)	(11,041)
Income tax benefit	(110)	(39)	(139)	(133)
Net loss	$ (2,309)	$ (2,485)	$ (8,482)	$ (10,908)
Net loss per share – basic	$ (0.25)	$ (0.27)	$ (0.91)	$ (1.18)
Weighted average shares outstanding	9,404	9,241	9,335	9,232