XML 44 R33.htm IDEA: XBRL DOCUMENT v3.10.0.1

Supplemental Financial Information (Schedule Of Supplemental Disclosures Of Cash Flow Information And Non-Cash Financing Activities) (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2018	Jul. 01, 2017
Supplemental Financial Information
Debt financing of insurance	$ 344	$ 220

X

- Definition

Debt Financing of Insurance

+ References

No definition available.

+ Details

Name:	nlst_DebtFinancingOfInsurance
Namespace Prefix:	nlst_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	us-gaap_SupplementalCashFlowInformationAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration