CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Net revenue:
Products	$ 11,752	$ 11,523
Service	4,437	4,444
Total net revenue	16,189	15,967
Cost of revenue:
Products	5,077	5,422
Service	2,226	1,995
Total cost of revenue	7,303	7,417
Gross profit	8,886	8,550
Operating expenses:
Sales and marketing	7,331	6,456
Research and development	2,644	2,121
General and administrative	2,564	2,289
Total operating expenses	12,539	10,866
Loss from operations	(3,653)	(2,316)
Interest and other income, net	80	135
Loss before income taxes	(3,573)	(2,181)
Provision (benefit) for income taxes	37	(18)
Net loss	$ (3,610)	$ (2,163)
Net loss per share:
Basic and Diluted (in dollars per share)	$ (0.26)	$ (0.15)
Weighted-average number of shares used in per share calculations:
Basic and Diluted (in shares)	14,021	14,408