Quarterly report pursuant to Section 13 or 15(d)

COMMITMENTS AND CONTINGENCIES - Leases Agreements (Details Narrative)

v2.4.1.9
COMMITMENTS AND CONTINGENCIES - Leases Agreements (Details Narrative) (USD $)
3 Months Ended
Mar. 31, 2015
Rental cost per month $ 3,600us-gaap_OperatingLeasesRentExpenseNet
Expiring date November 30, 2015
Tyler, Texas [Member]  
Rental cost per month 620us-gaap_OperatingLeasesRentExpenseNet
/ us-gaap_SaleLeasebackTransactionDescriptionAxis
= nssi_TylerAndTexasMember
Expiring date April 2016
In June 2011 [Member]  
Rental cost per month $ 7,000us-gaap_OperatingLeasesRentExpenseNet
/ us-gaap_CreationDateAxis
= nssi_InJuneTwoThousandElevenMember
Expiring date August 2015
Rent space 2,400nssi_RentSpace
/ us-gaap_CreationDateAxis
= nssi_InJuneTwoThousandElevenMember