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Concentration of Risk - Schedule of Significant Customers Accounting for at Least 10% of Net Sales During Period (Details) - Net sales [Member] | 3 Months Ended | 9 Months Ended
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Oct. 29, 2017 | Oct. 30, 2016 | Oct. 29, 2017 | Oct. 30, 2016
Concentration Risk [Line Items] |  |  |  |  |
Concentration risk, percentage |  | 100.00% | 100.00% | 100.00% | 100.00%
Customer Concentration Risk [Member] | Premier Technical Sales Korea, Inc. And Affiliates [Member] |  |  |  |  |
Concentration Risk [Line Items] |  |  |  |  |
Concentration risk, percentage | [1] | 5.00% | 6.00% | 6.00% | 5.00%
Customer Concentration Risk [Member] | Arrow Electronics And Affiliates [Member] |  |  |  |  |
Concentration Risk [Line Items] |  |  |  |  |
Concentration risk, percentage |  | 13.00% | 11.00% | 10.00% | 9.00%
Customer Concentration Risk [Member] | Trend-tek Technology Ltd And Affiliates [Member] |  |  |  |  |
Concentration Risk [Line Items] |  |  |  |  |
Concentration risk, percentage |  | 10.00% | 8.00% | 10.00% | 10.00%
Customer Concentration Risk [Member] | Samsung Electronics And Affiliates [Member] |  |  |  |  |
Concentration Risk [Line Items] |  |  |  |  |
Concentration risk, percentage |  | 9.00% | 9.00% | 8.00% | 8.00%
[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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