Consolidated Statements of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Revenue
Product	$ 40,769	$ 51,465	$ 75,220	$ 99,003
Services	6,732	7,649	13,006	15,117
Total revenue	47,501	59,114	88,226	114,120
Cost of revenue
Product	25,457	30,599	47,638	59,883
Services	5,307	5,727	10,910	10,913
Total cost of revenue	30,764	36,326	58,548	70,796
Gross profit	16,737	22,788	29,678	43,324
Operating expenses
Research and development	8,503	10,478	17,709	22,147
Sales and marketing	5,594	6,231	10,796	12,814
General and administrative	6,412	6,488	13,001	14,287
Gain on sale of dry strip assets and intellectual property	(799)		(1,167)
Restructuring charges	421	153	2,222	3,034
Total operating expenses	20,131	23,350	42,561	52,282
Loss from operations	(3,394)	(562)	(12,883)	(8,958)
Other income (expense)
Interest income	3	9	6	18
Interest expense	(51)		(115)
Other, net	(314)	551	580	(373)
Total other income (expense)	(362)	560	471	(355)
Loss before income taxes	(3,756)	(2)	(12,412)	(9,313)
Income taxes	263	469	596	1,186
Net loss	$ (4,019)	$ (471)	$ (13,008)	$ (10,499)
Net loss per share
Basic and Diluted (in dollars per share)	$ (0.04)	$ 0.00	$ (0.12)	$ (0.10)
Shares used in computing net loss per share
Basic and diluted weighted average common shares (in shares)	108,409	107,639	108,319	107,353