Quarterly report pursuant to Section 13 or 15(d)

COMMITMENTS AND CONTINGENCIES - Amended Patent Purchase Agreement (Details Narrative)

v2.4.1.9
COMMITMENTS AND CONTINGENCIES - Amended Patent Purchase Agreement (Details Narrative) (USD $)
Mar. 31, 2015
Mar. 11, 2015
Dec. 31, 2014
Dec. 31, 2012
Jan. 01, 2005
Additional patent cost for restructuring of future contingent payments         $ 500,000nssi_AdditionalPatentCostForRestructuringOfFutureContingentPayments
Achievement of net royalties 62,500,000nssi_AchievementOfNetRoyalties   50,000,000nssi_AchievementOfNetRoyalties    
Contingent payment made     1,000,000nssi_ContingentPayment 1,000,000nssi_ContingentPayment  
Payment to secured creditor in satisfaction of contingent payment   900,000nssi_PaymentToSecuredCreditorInSatisfactionOfContingentPayment      
Additional contingent payment 500,000nssi_AdditionalContingentPayment        
2012 [Member]          
Achievement of net royalties 25,000,000nssi_AchievementOfNetRoyalties
/ us-gaap_CreationDateAxis
= nssi_TwoThousandTwelveMember 		       
Contingent payment made $ 1,000,000nssi_ContingentPayment
/ us-gaap_CreationDateAxis
= nssi_TwoThousandTwelveMember