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Segment Information - Net Sales Activity by Geographic Region (Details) - Net sales [Member] | 3 Months Ended
--- | ---
Apr. 29, 2018 | Apr. 30, 2017
Revenues from External Customers and Long-Lived Assets [Line Items] |  |
Concentration risk, percentage | 100.00% | 100.00%
Asia-Pacific [Member] |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |
Concentration risk, percentage | 68.00% | 75.00%
North America [Member] |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |
Concentration risk, percentage | 27.00% | 22.00%
Europe [Member] |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |
Concentration risk, percentage | 9.00% | 7.00%
Other: Warrant Shares |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |
Concentration risk, percentage | (4.00%) | (4.00%)

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