SUBSEQUENT EVENTS (Details) - Subsequent Events	Feb. 22, 2018 USD ($)	Feb. 21, 2018 USD ($) ft²
SUBSEQUENT EVENTS
Lease term		10 years
Area of land \| ft²		77,000
Monthly rentals payable		$ 43,000
Consulting arrangement \| William Murray
SUBSEQUENT EVENTS
Term of consulting agreement	3 months
Consulting fee per hour	$ 250
Maximum daily consulting fee	$ 2,000

Represents the area of land under operating lease agreement.

No definition available.

Name:	nsys_AreaOfLandUnderOperatingLeaseAgreement
Namespace Prefix:	nsys_
Data Type:	num:areaItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the amount of consulting fee per hour for services rendered to the related party by the company.

+ References

No definition available.

+ Details

Name:	nsys_ConsultingFeePerHourRelatedPartyTransactions
Namespace Prefix:	nsys_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Represents the maximum daily amount of consulting fee per hour for services rendered to the related party by the company.

+ References

No definition available.

+ Details

Name:	nsys_MaximumDailyConsultingFeeRelatedPartyTransactions
Namespace Prefix:	nsys_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Term of the consulting arrangement, in 'PnYnMnDTnHnMnS' format.

+ References

No definition available.

+ Details

Name:	nsys_TermOfConsultingAgreementRelatedPartyTransactions
Namespace Prefix:	nsys_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Term of the lessee's leasing arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

Name:	us-gaap_LesseeLeasingArrangementsOperatingLeasesTermOfContract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

This element represents the payments that the lessee is obligated to make or can be required to make in connection with a property under the terms of an agreement classified as an operating lease, excluding contingent rentals and a guarantee by the lessee of the lessor's debt and the lessee's obligation to pay (apart from the rental payments) executory costs such as insurance, maintenance, and taxes.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6453985&loc=d3e41499-112717

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 10
-Section 25
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=7661868&loc=d3e34039-112682

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 10
-Section 55
-Paragraph 40
-Subparagraph (Note 3)
-URI http://asc.fasb.org/extlink&oid=6584154&loc=d3e38371-112697

+ Details

Name:	us-gaap_OperatingLeasesRentExpenseMinimumRentals
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

No definition available.

+ Details

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

- Details

Name:	us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_TypeOfArrangementAxis=nsys_ConsultingArrangementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=nsys_IndependentDirectorMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: