Condensed Consolidated Statements of Operations (Unaudited) (USD $) In Thousands, except Per Share data	3 Months Ended		9 Months Ended
	Oct. 01, 2011	Oct. 02, 2010	Oct. 01, 2011	Oct. 02, 2010
Net revenues:
Systems and components	$ 17,788	$ 59,404	$ 59,012	$ 152,282
Technology development	1,533	5,223	5,317	14,085
Total net revenues	19,321	64,627	64,329	166,367
Cost of net revenues:
Systems and components	10,693	31,776	36,747	84,103
Technology development	1,110	3,267	3,547	9,168
Total cost of net revenues	11,803	35,043	40,294	93,271
Gross profit	7,518	29,584	24,035	73,096
Operating expenses:
Research and development	8,612	7,063	25,914	20,618
Selling, general and administrative	6,979	7,148	20,372	21,273
Total operating expenses	15,591	14,211	46,286	41,891
Income (loss) from operations	(8,073)	15,373	(22,251)	31,205
Interest income and other, net	140	(84)	438	379
Income (loss) before income taxes	(7,933)	15,289	(21,813)	31,584
Provision for (benefit from) income taxes	(1,817)	2,110	(6,047)	4,638
Net income (loss)	$ (6,116)	$ 13,179	$ (15,766)	$ 26,946
Net income (loss) per share:
Basic	$ (0.27)	$ 0.59	$ (0.69)	$ 1.21
Diluted	$ (0.27)	$ 0.58	$ (0.69)	$ 1.18
Weighted average common shares outstanding:
Basic	22,951	22,383	22,843	22,288
Diluted	22,951	22,887	22,843	22,931