Concentration of Risk (Tables) (Customer Concentration Risk [Member])

3 Months Ended

Apr. 26, 2015

Sales Revenue, Goods, Net [Member]

Concentration Risk [Line Items]

Schedule Of Significant Customers Accounting For At Least 10% Of Net Sales During Period

The following significant customers accounted for at least 10% of net sales in one or more of the periods indicated:

	Three Months Ended
(percentage of net sales)	April 26, 2015		April 27, 2014
Samsung Electronics (and affiliates)	8	%	14	%

Accounts Receivable [Member]

Concentration Risk [Line Items]

Schedule Of Significant Customers Accounting For At Least 10% Of Net Sales During Period

The following table shows the customer that has an outstanding receivable balance that represents at least 10% of total net receivables for the periods indicated:

	Balance as of
(percentage of net accounts receivable)	April 26, 2015		January 25, 2015
Samsung Electronics (and affiliates)	8	%	12	%