Concentration of Risk (Tables)

6 Months Ended

Jul. 31, 2016

Sales Revenue, Goods, Net [Member] | Customer Concentration Risk [Member]

Concentration Risk [Line Items]

Schedule Of Significant Customers Accounting For At Least 10% Of Net Sales or Receivables

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

	Three Months Ended				Six Months Ended
(percentage of net sales)	July 31, 2016		July 26, 2015		July 31, 2016		July 26, 2015
Arrow (and affiliates)	10	%	9	%	9	%	9	%
Trend-tek Technology Ltd (and affiliates)	8	%	7	%	10	%	11	%