CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Net revenue:
Products	$ 15,053	$ 15,156	$ 26,576	$ 27,010
Service	4,507	4,435	8,951	8,308
Total net revenue	19,560	19,591	35,527	35,318
Cost of revenue:
Products	6,151	6,968	11,573	12,619
Service	2,291	2,306	4,286	4,500
Total cost of revenue	8,442	9,274	15,859	17,119
Gross profit	11,118	10,317	19,668	18,199
Operating expenses:
Sales and marketing	7,170	7,112	13,626	14,549
Research and development	2,217	1,872	4,338	4,088
General and administrative	2,354	2,854	4,643	6,349
Total operating expenses	11,741	11,838	22,607	24,986
Loss from operations	(623)	(1,521)	(2,939)	(6,787)
Interest and other income, net	75	144	210	240
Loss before income taxes	(548)	(1,377)	(2,729)	(6,547)
Provision for income taxes	90	89	72	186
Net loss	$ (638)	$ (1,466)	$ (2,801)	$ (6,733)
Net loss per share:
Basic and Diluted (in dollars per share)	$ 0	$ 0	$ 0	$ 0
Weighted-average number of shares used in per share calculations:
Basic and Diluted (in shares)	14,723	14,095	14,566	14,027