Unaudited Condensed Consolidated Statements of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	May 04, 2013	Apr. 28, 2012
Net revenue	$ 52,540	$ 40,258
Cost of revenue	25,594	19,163
Gross profit	26,946	21,095
Operating expenses
Research and development	20,204	21,789
Sales and marketing	5,682	6,888
General and administrative	4,762	6,379
Restructuring costs	210
Impairment of IP, mask sets and design tools	188
Total operating expenses	31,046	35,056
Loss from operations	(4,100)	(13,961)
Gain on sale of development project	1,079
Interest and other income, net	691	491
Loss before income taxes	(2,330)	(13,470)
Provision for income taxes	2,203	232
Net loss	$ (4,533)	$ (13,702)
Net loss per common share:
Basic (in Dollars per share)	$ (0.13)	$ (0.42)
Diluted (in Dollars per share)	$ (0.13)	$ (0.42)
Shares used in computing net loss per share:
Basic (in Shares)	33,912	32,661
Diluted (in Shares)	33,912	32,661