Consolidated Statements of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Revenue
Product	$ 42,934	$ 37,093	$ 118,151	$ 136,096
Services	5,897	7,547	18,907	22,664
Total revenue	48,831	44,640	137,058	158,760
Cost of revenue
Product	27,339	24,809	74,976	84,692
Services	4,516	5,464	15,427	16,377
Total cost of revenue	31,855	30,273	90,403	101,069
Gross profit	16,976	14,367	46,655	57,691
Operating expenses
Research and development	8,148	9,851	25,857	31,999
Sales and marketing	5,330	5,470	16,128	18,284
General and administrative	6,164	6,325	19,165	20,611
Gain on sale of dry strip assets and intellectual property			(1,167)
Restructuring charges	112	578	2,334	3,612
Total operating expenses	19,754	22,224	62,317	74,506
Loss from operations	(2,778)	(7,857)	(15,662)	(16,815)
Other income (expense)
Interest income	3	9	8	27
Interest expense	(193)		(308)
Other, net	(1,252)	(627)	(671)	(999)
Total other income (expense)	(1,442)	(618)	(971)	(972)
Loss before income taxes	(4,220)	(8,475)	(16,633)	(17,787)
Income taxes	530	243	1,125	1,429
Net loss	$ (4,750)	$ (8,718)	$ (17,758)	$ (19,216)
Net loss per share
Basic and Diluted (in dollars per share)	$ (0.04)	$ (0.08)	$ (0.16)	$ (0.18)
Shares used in computing net loss per share
Basic and diluted weighted average common shares (in shares)	109,074	107,855	108,573	107,521