Note 19. Segment and Geographical Information (Detail) - Net Revenue For Each Geographic Region Based on the Ship-to Location (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Feb. 02, 2013	Oct. 27, 2012	Jul. 28, 2012	Apr. 28, 2012	Jan. 28, 2012	Oct. 29, 2011	Jul. 30, 2011	Apr. 30, 2011	Feb. 02, 2013	Jan. 28, 2012	Jan. 29, 2011
Net revenue - Geographic region	$ 44,199	$ 63,905	$ 68,251	$ 40,258	$ 35,566	$ 39,725	$ 46,694	$ 60,632	$ 216,613	$ 182,617	$ 286,915
Asia [Member]
Net revenue - Geographic region									150,658	166,583	266,065
North America [Member]
Net revenue - Geographic region									17,006	8,982	13,454
Europe [Member]
Net revenue - Geographic region									41,283	5,718	7,101
Other Regions [Member]
Net revenue - Geographic region									$ 7,666	$ 1,334	$ 295