Consolidated Statements of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Revenue:
Product	$ 34,795	$ 40,769	$ 89,810	$ 75,220
Services	6,355	6,732	12,180	13,006
Total revenue	41,150	47,501	101,990	88,226
Cost of revenue:
Product	21,021	25,457	54,823	47,638
Services	5,645	5,307	10,943	10,910
Total cost of revenue	26,666	30,764	65,766	58,548
Gross profit	14,484	16,737	36,224	29,678
Operating expenses:
Research and development	8,845	8,503	18,102	17,709
Sales and marketing	5,037	5,594	10,513	10,796
General and administrative	6,494	6,412	12,975	13,001
Gain on sale of dry strip assets and intellectual property		(799)		(1,167)
Restructuring charges	160	421	360	2,222
Total operating expenses	20,536	20,131	41,950	42,561
Loss from operations	(6,052)	(3,394)	(5,726)	(12,883)
Other income (expense):
Interest income	2	3	4	6
Interest expense	(257)	(51)	(508)	(115)
Other, net	(362)	(314)	(70)	580
Total other income (expense)	(617)	(362)	(574)	471
Loss before income taxes	(6,669)	(3,756)	(6,300)	(12,412)
Income taxes	231	263	426	596
Net loss	$ (6,900)	$ (4,019)	$ (6,726)	$ (13,008)
Net loss per share
Basic and Diluted (in dollars per share)	$ (0.06)	$ (0.04)	$ (0.06)	$ (0.12)
Shares used in computing net loss per share:
Basic and diluted weighted average common shares (in shares)	111,212	108,409	110,932	108,319