CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Net revenue:
Products	$ 11,523	$ 11,854
Service	4,444	3,873
Total net revenue	15,967	15,727
Cost of Revenue:
Products	5,422	5,651
Service	1,995	2,194
Total cost of revenue	7,417	7,845
Gross profit	8,550	7,882
Operating expenses:
Sales and marketing	6,456	7,437
Research and development	2,121	2,216
General and administrative	2,289	3,495
Total operating expenses	10,866	13,148
Loss from operations	(2,316)	(5,266)
Interest and other income, net	135	96
Loss before income taxes	(2,181)	(5,170)
Provision (benefit) for income taxes	(18)	97
Net loss	$ (2,163)	$ (5,267)
Net loss per share:
Basic and diluted (in dollars per share)	$ (0.15)	$ (0.38)
Weighted-average number of shares used in per share calculations:
Basic and diluted (in shares)	14,408	13,960