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Concentration of Risk (Tables) | 9 Months Ended
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Oct. 29, 2017
Net sales [Member] | Customer Concentration Risk [Member] |
Concentration Risk [Line Items] |
Schedule Of Significant Customers Accounting For At Least 10% Of Net Sales | The following significant customers accounted for at least 10% of net sales in one or more of the periods indicated:
| Three Months Ended |  | Nine Months Ended
(percentage of net sales) | October 29, 2017 |  | October 30, 2016 |  | October 29, 2017 |  | October 30, 2016
Arrow Electronics (and affiliates) | 13 | % |  | 11 | % |  | 10 | % |  | 9 | %
Trend-tek Technology Ltd (and affiliates) | 10 | % |  | 8 | % |  | 10 | % |  | 10 | %
Samsung Electronics (and affiliates) | 9 | % |  | 9 | % |  | 8 | % |  | 8 | %
Premier Technical Sales Korea, Inc. (and affiliates) (1) | 5 | % |  | 6 | % |  | 6 | % |  | 5 | %
(1) Premier is a distributor with a concentration of sales to Samsung. The above percentages represent the Company's estimate of the sales activity related to Samsung that is passing through this distributor.

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