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Subsequent Events (Loan and Security Agreement and Related Agreements) (Details) (Subsequent Event [Member], USD $)	6 Months Ended
	Jun. 29, 2013
Subsequent Event [Line Items]
Credit agreement, maximum borrowing capacity	$ 5,000,000
Patent Legal Fees Percentage	(40.00%)
Loans Payable [Member]
Subsequent Event [Line Items]
Debt instrument, face value	10,000,000
Debt Instrument, Interest Rate, Stated Percentage	11.00%
Debt Instrument, Interest Only Period	18 years
Debt Instrument, Principal Payment Period	18 years
Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid, Percentage	35.00%
Debt Instrument, Pentangle of Principal Paid Monthly	65.00%
Debt Instrument, Fee Amount	300,000
Debt Instrument, Fee, Percentage of Future Term Loan	5.00%
Initial Term Loan [Member] | Loans Payable [Member]
Subsequent Event [Line Items]
Debt instrument, face value	6,000,000
Intellectual Property Milestone Term Loan [Member] | Loans Payable [Member]
Subsequent Event [Line Items]
Debt instrument, face value	$ 4,000,000
Interest Paid in Cash [Member] | Loans Payable [Member]
Subsequent Event [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	7.00%
Interest Paid in Kind [Member] | Loans Payable [Member]
Subsequent Event [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	4.00%
Interest in Case of Default [Member] | Loans Payable [Member]
Subsequent Event [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	5.00%
Between July 18, 2014 and July 18, 2015 [Member]
Subsequent Event [Line Items]
Debt Instrument, Prepayment Premium Percentage	2.00%
After July 18, 2015 [Member]
Subsequent Event [Line Items]
Debt Instrument, Prepayment Premium Percentage	0.00%
Minimum [Member] | Prior to July 18, 2014 [Member]
Subsequent Event [Line Items]
Debt Instrument, Prepayment Premium Percentage	2.00%
Maximum [Member] | Prior to July 18, 2014 [Member]
Subsequent Event [Line Items]
Debt Instrument, Prepayment Premium Percentage	4.00%

X

- Definition

Debt Instrument, Fee, Percentage of Future Term Loan

+ References

No definition available.

+ Details

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Namespace Prefix:	nlst_
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Balance Type:	na
Period Type:	duration

X

- Definition

Debt Instrument, Interest Only Period

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

X

- Definition

Debt Instrument, Pentangle of Principal Paid Monthly

+ References

No definition available.

+ Details

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Namespace Prefix:	nlst_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid, Percentage

+ References

No definition available.

+ Details

Name:	nlst_DebtInstrumentPeriodicPaymentTermsBalloonPaymentToBePaidPercentage
Namespace Prefix:	nlst_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Debt Instrument, Prepayment Premium Percentage

+ References

No definition available.

+ Details

Name:	nlst_DebtInstrumentPrepaymentPremiumPercentage
Namespace Prefix:	nlst_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Debt Instrument, Principal Payment Period

+ References

No definition available.

+ Details

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Namespace Prefix:	nlst_
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Balance Type:	na
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X

- Definition

Patent Legal Fees Percentage

+ References

No definition available.

+ Details

Name:	nlst_PatentLegalFeesPercentage
Namespace Prefix:	nlst_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The stated principal amount of the debt instrument at time of issuance, which may vary from the carrying amount because of unamortized premium or discount.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 45

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 55

-Paragraph 8

-URI http://asc.fasb.org/extlink&oid=6584090&loc=d3e28878-108400



Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher AICPA

-Name Accounting Principles Board Opinion (APB)

-Number 21

-Paragraph 16, 20

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

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Balance Type:	credit
Period Type:	instant

X

- Definition

Amount of the fee that accompanies borrowing money under the debt instrument.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22(b))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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Balance Type:	debit
Period Type:	instant

X

- Definition

Interest rate stated in the contractual debt agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22(a)(1))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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Balance Type:	na
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X

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 129

-Paragraph 2, 4

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.19(b),22(b))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682



Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19, 22

-Article 5

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Details

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