Consolidated Statements of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Revenue
Product	$ 32,360	$ 42,934	$ 122,170	$ 118,151
Services	6,171	5,897	18,351	18,907
Total revenue	38,531	48,831	140,521	137,058
Cost of revenue
Product	18,823	27,339	73,646	74,976
Services	4,564	4,516	15,507	15,427
Total cost of revenue	23,387	31,855	89,153	90,403
Gross profit	15,144	16,976	51,368	46,655
Operating expenses
Research and development	7,950	8,148	26,052	25,857
Sales and marketing	4,891	5,330	15,404	16,128
General and administrative	5,380	6,164	18,356	19,165
Gain on sale of dry strip assets and intellectual property				(1,167)
Restructuring charges	2,288	112	2,648	2,334
Total operating expenses	20,509	19,754	62,460	62,317
Loss from operations	(5,365)	(2,778)	(11,092)	(15,662)
Other income (expense)
Interest income	2	3	6	8
Interest expense	(304)	(193)	(812)	(308)
Other, net	1,352	(1,252)	1,282	(671)
Total other income (expense)	1,050	(1,442)	476	(971)
Loss before income taxes	(4,315)	(4,220)	(10,616)	(16,633)
Income taxes	389	530	814	1,125
Net loss	$ (4,704)	$ (4,750)	$ (11,430)	$ (17,758)
Net loss per share
Basic and Diluted (in dollars per share)	$ (0.04)	$ (0.04)	$ (0.10)	$ (0.16)
Shares used in computing net loss per share
Basic and diluted weighted average common shares (in shares)	111,701	109,074	111,191	108,573