Segment Information - Net Sales Activity by Geographic Region (Details) - Net sales [Member]	3 Months Ended		9 Months Ended
	Oct. 29, 2017	Oct. 30, 2016	Oct. 29, 2017	Oct. 30, 2016
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%	80.00%	74.00%	79.00%
North America [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk, percentage	21.00%	16.00%	21.00%	16.00%
Europe [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk, percentage	8.00%	7.00%	8.00%	8.00%
Other: Warrant Shares [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk, percentage	(4.00%)	(3.00%)	(3.00%)	(3.00%)