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Concentration of Risk (Tables) | 9 Months Ended
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Oct. 27, 2019
Risks and Uncertainties [Abstract] |
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 27, 2019 |  | October 28, 2018 |  | October 27, 2019 |  | October 28, 2018
Trend-tek Technology Ltd. (and affiliates) | 13 | % |  | 14 | % |  | 13 | % |  | 13 | %
Frontek Technology Corporation (and affiliates) | 12 | % |  | 13 | % |  | 11 | % |  | 11 | %
Arrow Electronics (and affiliates) | 10 | % |  | 11 | % |  | 9 | % |  | 11 | %
CEAC International Ltd. (and affiliates) | 10 | % |  | 7 | % |  | 7 | % |  | 7 | %
Samsung Electronics (and affiliates) | 4 | % |  | 8 | % |  | 5 | % |  | 8 | %
Premier Technical Sales Korea, Inc. (and affiliates) (1) | 8 | % |  | 3 | % |  | 7 | % |  | 4 | %
(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. The following table shows the customers that have an outstanding receivable balance that represents at least 10% of total net receivables as of the dates indicated:
| Balance as of
(percentage of net sales) | October 27, 2019 |  | January 27, 2019
Frontek Technology Corporation (and affiliates) | 11 | % |  | 10 | %
Trend-tek Technology Ltd. (and affiliates) | 11 | % |  | 11 | %

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