CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Apr. 02, 2011
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS
Net sales	$ 28,426	$ 43,463
Cost of sales	26,747	31,303
Gross profit	1,679	12,160
Research and development expenses	11,614	13,573
Selling and administrative expenses	6,855	9,436
Restructuring charge	494	0
Operating loss	(17,284)	(10,849)
Interest income	150	141
Interest expense	0	17
Other income, net	1,314	51
Net loss	$ (15,820)	$ (10,674)
Earnings (loss) per share
Basic and diluted loss per share	$ (0.23)	$ (0.16)
Weighted average common shares outstanding used in computing earnings (loss) per share
Basic and diluted	69,669	67,037