Unaudited Condensed Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Apr. 30, 2016	May. 02, 2015
Net revenue	$ 53,775	$ 55,912
Cost of revenue	29,774	26,564
Gross profit	24,001	29,348
Operating expenses
Research and development	19,155	16,313
Sales and marketing	5,723	5,811
General and administrative	$ 5,138	5,781
Impairment of IP, mask sets and design tools		33
Total operating expenses	$ 30,016	27,938
(Loss) income from operations	(6,015)	1,410
Interest income and other (expense), net	(751)	671
(Loss) income before income taxes	(6,766)	2,081
Provision for income taxes	1,332	2,463
Net loss	$ (8,098)	$ (382)
Net loss per common share:
Basic (in dollars per share)	$ (0.22)	$ (0.01)
Diluted (in dollars per share)	$ (0.22)	$ (0.01)
Shares used in computing net loss per share:
Basic (in shares)	36,872	35,395
Diluted (in shares)	36,872	35,395