Geographic Information And Concentrations Of Risk (Summary Of Sales Activity To Countries Greater Than 10% Of Total Sales) (Details)	12 Months Ended
	Jan. 29, 2012	Jan. 30, 2011	Jan. 31, 2010
Geographic Information And Concentration Of Risk [Line Items]
Total Net Sales, Percentage	66.00%	67.00%	63.00%
United States [Member]
Geographic Information And Concentration Of Risk [Line Items]
Total Net Sales, Percentage	20.00%	23.00%	19.00%
China (Including Hong Kong) [Member]
Geographic Information And Concentration Of Risk [Line Items]
Total Net Sales, Percentage	38.00%	34.00%	26.00%
South Korea [Member]
Geographic Information And Concentration Of Risk [Line Items]
Total Net Sales, Percentage	8.00%	10.00%	18.00%