XML 20 R29.htm IDEA: XBRL DOCUMENT
v2.4.1.9

COMMITMENTS AND CONTINGENCIES (Details) (USD $) | 12 Months Ended
--- | ---
Dec. 31, 2014 | Dec. 31, 2013
COMMITMENTS AND CONTINGENCIES |  |
Rent expense | $ 661,000 us-gaap_LeaseAndRentalExpense | $ 687,000 us-gaap_LeaseAndRentalExpense
Operating Leases |  |
2015 | 444,799 us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent |
2016 | 299,207 us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears |
2017 | 249,344 us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears |
2018 | 249,344 us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears |
2019 | 248,786 us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears |
Maximum |  |
Commitment and contingencies |  |
Professional outplacement services that would be received by the participants | 10,000 nsys_ProfessionalOutplacementServicesWouldBeReceivedAmount / us-gaap_RangeAxis = us-gaap_MaximumMember |
2002 Plan |  |
Commitment and contingencies |  |
Period of graded vesting schedule | 5 years |
Annual vesting by the participants (as a percent) | 20.00%nsys_AnnualVestingPercentage / us-gaap_OtherCommitmentsAxis = nsys_ExecutiveBonusLifeInsurancePlan2002Member |
Expenses incurred | $ 282,000 us-gaap_OtherLaborRelatedExpenses / us-gaap_OtherCommitmentsAxis = nsys_ExecutiveBonusLifeInsurancePlan2002Member | $ 333,000 us-gaap_OtherLaborRelatedExpenses / us-gaap_OtherCommitmentsAxis = nsys_ExecutiveBonusLifeInsurancePlan2002Member
2002 Plan | Officer participants |  |
Commitment and contingencies |  |
Bonus to be paid as a percentage of the participants base annual salary | 15.00%nsys_BonusToBePaidAsPercentageOfParticipantsBaseAnnualSalary / us-gaap_OtherCommitmentsAxis = nsys_ExecutiveBonusLifeInsurancePlan2002Member / us-gaap_TitleOfIndividualAxis = us-gaap_OfficerMember |
2002 Plan | Other participants |  |
Commitment and contingencies |  |
Bonus to be paid as a percentage of the participants base annual salary | 10.00%nsys_BonusToBePaidAsPercentageOfParticipantsBaseAnnualSalary / us-gaap_OtherCommitmentsAxis = nsys_ExecutiveBonusLifeInsurancePlan2002Member / us-gaap_TitleOfIndividualAxis = nsys_OtherParticipantsMember |
Agreement(s) | Officer participants |  |
Commitment and contingencies |  |
Period of continued participation in health, disability and life insurance plans after involuntary termination | 3 years |
Agreement(s) | Other participants |  |
Commitment and contingencies |  |
Period of continued participation in health, disability and life insurance plans after involuntary termination | 2 years |

X
- Definition Represents the annual vesting percentage of participants under the plan of the entity. + References No definition available. + Details
Name: | nsys_AnnualVestingPercentage
Namespace Prefix: | nsys_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the amount of bonus to be paid as a percentage of the participants' base annual salary. + References No definition available. + Details
Name: | nsys_BonusToBePaidAsPercentageOfParticipantsBaseAnnualSalary
Namespace Prefix: | nsys_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | nsys_CommitmentLineItems
Namespace Prefix: | nsys_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the period of continued participation in health, disability and life insurance plans for the participants in the event of an involuntarily termination. + References No definition available. + Details
Name: | nsys_DisabilityAndLifeInsurancePlansPeriod
Namespace Prefix: | nsys_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the period of graded vesting schedule in which the participants vest under the plan of the entity. + References No definition available. + Details
Name: | nsys_GradedVestingSchedulePeriod
Namespace Prefix: | nsys_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the amount of professional outplacement services that would be received by the participants in the event of an involuntarily termination. + References No definition available. + Details
Name: | nsys_ProfessionalOutplacementServicesWouldBeReceivedAmount
Namespace Prefix: | nsys_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_CommitmentsAndContingenciesDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line. + References No definition available. + Details
Name: | us-gaap_LeaseAndRentalExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_OperatingLeasesFutureMinimumPaymentsDueAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6453985&loc=d3e41502-112717 Reference 2: 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_OperatingLeasesFutureMinimumPaymentsDueCurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6453985&loc=d3e41502-112717 Reference 2: 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_OperatingLeasesFutureMinimumPaymentsDueInFiveYears
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6453985&loc=d3e41502-112717 Reference 2: 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_OperatingLeasesFutureMinimumPaymentsDueInFourYears
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6453985&loc=d3e41502-112717 Reference 2: 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_OperatingLeasesFutureMinimumPaymentsDueInThreeYears
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6453985&loc=d3e41502-112717 Reference 2: 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_OperatingLeasesFutureMinimumPaymentsDueInTwoYears
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of payroll tax expense, compensation, postemployment and benefit-related expenses not elsewhere specified in the taxonomy (such as health plan, profit sharing, incentives, tuition reimbursement, other fringe benefits and perquisites) incurred in the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.4) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 + Details
Name: | us-gaap_OtherLaborRelatedExpenses
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_OtherCommitmentsAxis=nsys_ChangeOfControlAgreementsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_OtherCommitmentsAxis=nsys_ExecutiveBonusLifeInsurancePlan2002Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |