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Segment Information Net Sales Activity by Geographic Region (Details) (Sales Revenue, Goods, Net [Member])
 3 Months Ended
Apr. 26, 2015
Apr. 27, 2014
Revenues from External Customers and Long-Lived Assets [Line Items]    
Concentration risk, percentage 100.00%us-gaap_ConcentrationRiskPercentage1 100.00%us-gaap_ConcentrationRiskPercentage1
Asia-Pacific [Member]
    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Concentration risk, percentage 74.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_SalesRevenueGoodsNetMember
/ us-gaap_StatementGeographicalAxis
= us-gaap_AsiaPacificMember		 74.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_SalesRevenueGoodsNetMember
/ us-gaap_StatementGeographicalAxis
= us-gaap_AsiaPacificMember
North America [Member]
    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Concentration risk, percentage 17.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_SalesRevenueGoodsNetMember
/ us-gaap_StatementGeographicalAxis
= us-gaap_NorthAmericaMember		 14.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_SalesRevenueGoodsNetMember
/ us-gaap_StatementGeographicalAxis
= us-gaap_NorthAmericaMember
Europe [Member]
    
Revenues from External Customers and Long-Lived Assets [Line Items]    
Concentration risk, percentage 9.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_SalesRevenueGoodsNetMember
/ us-gaap_StatementGeographicalAxis
= us-gaap_EuropeMember		 12.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_SalesRevenueGoodsNetMember
/ us-gaap_StatementGeographicalAxis
= us-gaap_EuropeMember