Consolidated Statements of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Jan. 01, 2012	Jan. 02, 2011	Jan. 03, 2010
Revenue	$ 20,969	$ 26,199	$ 15,074
Cost of revenue	8,517	9,609	7,715
Long-lived asset impairment	0	0	150
Gross profit	12,452	16,590	7,209
Operating expenses:
Research and development	9,836	7,458	6,203
Selling, general and administrative	9,965	10,073	10,617
Restructuring costs	0	0	59
Income (loss) from operations	(7,349)	(941)	(9,670)
Gain on sale of TowerJazz Semiconductor Ltd. Shares	0	993	0
Interest expense	(36)	(67)	(93)
Interest income and other, net	(159)	(46)	(54)
Income (loss) before income taxes	(7,544)	(61)	(9,817)
Provision for (benefit from) income taxes	50	(184)	(63)
Net income (loss)	$ (7,594)	$ 123	$ (9,754)
Net Income (loss) per share:
Basic (in dollars per share)	$ (0.21)	$ 0.00	$ (0.32)
Diluted (in dollars per share)	$ (0.21)	$ 0.00	$ (0.32)
Weighted average shares:
Basic (in shares)	36,792	35,729	30,739
Diluted (in shares)	36,792	39,038	30,739