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DEBT AND LINES OF CREDIT (Details) (USD $)
In Thousands, unless otherwise specified
Apr. 04, 2015
Jan. 03, 2015
Short-term borrowings    
Total short-term borrowings $ 3,567us-gaap_ShortTermBorrowings $ 3,772us-gaap_ShortTermBorrowings
Foreign line of credit | Revolving line of credit | Japanese revolving lines of credit    
Short-term borrowings    
Total short-term borrowings 2,851us-gaap_ShortTermBorrowings
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
/ us-gaap_DebtInstrumentAxis
= newp_JapaneseRevolvingLinesOfCreditMember
/ us-gaap_ShortTermDebtTypeAxis
= us-gaap_ForeignLineOfCreditMember		 3,163us-gaap_ShortTermBorrowings
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
/ us-gaap_DebtInstrumentAxis
= newp_JapaneseRevolvingLinesOfCreditMember
/ us-gaap_ShortTermDebtTypeAxis
= us-gaap_ForeignLineOfCreditMember
Receivables financing | Japanese receivables financing facilities    
Short-term borrowings    
Total short-term borrowings 277us-gaap_ShortTermBorrowings
/ us-gaap_DebtInstrumentAxis
= newp_JapaneseReceivablesFinancingFacilitiesMember
/ us-gaap_ShortTermDebtTypeAxis
= newp_AccountsReceivableFinancingMember		 25us-gaap_ShortTermBorrowings
/ us-gaap_DebtInstrumentAxis
= newp_JapaneseReceivablesFinancingFacilitiesMember
/ us-gaap_ShortTermDebtTypeAxis
= newp_AccountsReceivableFinancingMember
Loans | Israeli loans due October 2015    
Short-term borrowings    
Total short-term borrowings $ 439us-gaap_ShortTermBorrowings
/ us-gaap_DebtInstrumentAxis
= newp_IsraeliLoansMember
/ us-gaap_ShortTermDebtTypeAxis
= us-gaap_LoansPayableMember		 $ 584us-gaap_ShortTermBorrowings
/ us-gaap_DebtInstrumentAxis
= newp_IsraeliLoansMember
/ us-gaap_ShortTermDebtTypeAxis
= us-gaap_LoansPayableMember