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Segment Information - Net Sales Activity by Geographic Region (Details) - Net sales [Member] | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jul. 29, 2018 | Jul. 30, 2017 | Jul. 29, 2018 | Jul. 30, 2017
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Concentration risk, percentage | 100.00% | 100.00% | 100.00% | 100.00%
Asia-Pacific [Member] |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Concentration risk, percentage | 75.00% | 73.00% | 72.00% | 75.00%
North America [Member] |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Concentration risk, percentage | 19.00% | 21.00% | 28.00% | 21.00%
Europe [Member] |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Concentration risk, percentage | 6.00% | 8.00% | 7.00% | 7.00%
Other: Warrant Shares |  |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |  |
Concentration risk, percentage | (0.00%) | (2.00%) | (7.00%) | (3.00%)

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