Consolidated Statements of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Revenue
Product	$ 47,538	$ 86,603
Service	7,468	6,567
Total revenue	55,006	93,170
Cost of revenue
Product	29,284	56,873
Service	5,186	5,216
Total cost of revenue	34,470	62,089
Gross profit	20,536	31,081
Operating expenses
Research and development	11,669	11,818
Sales and marketing	6,583	7,819
General and administrative	7,799	9,055
Restructuring charges	2,881
Total operating expenses	28,932	28,692
Income (loss) from operations	(8,396)	2,389
Other income (expense)
Interest income	9	6
Other, net	(924)	(450)
Total other expense	(915)	(444)
Income (loss) before income taxes	(9,311)	1,945
Income taxes	717	133
Net income (loss)	$ (10,028)	$ 1,812
Net income (loss) per share
Basic and diluted net income (loss) per share (in dollars per share)	$ (0.09)	$ 0.02
Shares used in computing basic and diluted net income (loss) per share
Basic weighted average common shares (in shares)	107,067	105,936
Diluted weighted average common shares (in shares)	107,067	110,791