Consolidated Statements of Operations (Unaudited) (USD $) In Thousands, except Per Share data	3 Months Ended	6 Months Ended
Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Revenue:
Products	$ 4,494	$ 4,716	$ 9,709	$ 9,928
Service and supplies	2,152	1,381	4,281	2,690
Total revenue	6,646	6,097	13,990	12,618
Cost of revenue:
Products	1,140	557	2,347	1,225
Service and supplies	769	591	1,541	1,205
Amortization of acquired technology	234		467
Total cost of revenue	2,143	1,148	4,355	2,430
Gross profit	4,503	4,949	9,635	10,188
Operating expenses:
Engineering and product development	3,303	1,525	6,079	3,081
Marketing and sales	3,945	2,617	7,672	5,016
General and administrative	2,312	1,839	5,116	4,326
Total operating expenses	9,560	5,981	18,867	12,423
Loss from operations	(5,057)	(1,032)	(9,232)	(2,235)
Gain on sale of patent		275		275
Interest (expense) income - net	(36)	21	(62)	39
Net loss	$ (5,093)	$ (736)	$ (9,294)	$ (1,921)
Net loss per share:
Basic and diluted	$ (0.09)	$ (0.02)	$ (0.17)	$ (0.04)
Weighted average number of shares used in computing loss per share:
Basic and diluted	54,550	45,737	54,458	45,712

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