Condensed Consolidated Statements of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Revenues	$ 286,096	$ 330,865	$ 284,311
Cost of sales:
Cost of sales	188,513	225,752	190,915
Amortization of purchased technology	9,544	8,348	6,182
Total cost of sales	198,057	234,100	197,097
Gross margin	88,039	96,765	87,214
Research and development	47,739	44,625	38,678
Selling, general and administrative	45,200	52,722	45,532
Operating Expense, Amortization	5,215	2,922	730
Impairment of goodwill	29,748	0	0
Restructuring and acquisition-related charges, net	(117)	9,980	1,575
Gain on the liquidation of a foreign subsidiary	0	(2,081)	0
Income (loss) from operations	(39,746)	(11,403)	699
Interest expense	(1,722)	(1,870)	(2,035)
Interest Income (Expense), Net	39	99	636
Other income (expense), net	545	513	(154)
Income (loss) before income tax expense (benefit)	(40,884)	(12,661)	(854)
Income tax expense (benefit)	2,590	(11,132)	(485)
Net income (loss)	$ (43,474)	$ (1,529)	$ (369)
Net income (loss) per share:
Basic	$ (1.60)	$ (0.06)	$ (0.02)
Diluted	$ (1.60)	$ (0.06)	$ (0.02)
Weighted average shares outstanding:
Basic	27,174	25,413	24,144
Diluted	27,174	25,413	24,144