Annual report pursuant to Section 13 and 15(d)

STOCKHOLDER'S EQUITY (Details 3)

v2.4.1.9
STOCKHOLDER'S EQUITY (Details 3)
12 Months Ended
Dec. 31, 2014
Number of Warrants 750,000us-gaap_ClassOfWarrantOrRightOutstanding
Exercise Price $ 2.10  
Number of Warrants 250,000us-gaap_ClassOfWarrantOrRightOutstanding
/ us-gaap_OptionIndexedToIssuersEquityTypeAxis
= nssi_ExercisePriceMember
Expiration Date May 21, 2018
Exercise Price $ 1.40  
Number of Warrants 250,000us-gaap_ClassOfWarrantOrRightOutstanding
/ us-gaap_OptionIndexedToIssuersEquityTypeAxis
= nssi_ExercisePriceOneMember
Expiration Date May 21, 2018
Exercise Price $ 2.10  
Number of Warrants 125,000us-gaap_ClassOfWarrantOrRightOutstanding
/ us-gaap_OptionIndexedToIssuersEquityTypeAxis
= nssi_ExercisePriceTwoMember
Expiration Date Jul. 26, 2018
Exercise Price $ 1.40  
Number of Warrants 125,000us-gaap_ClassOfWarrantOrRightOutstanding
/ us-gaap_OptionIndexedToIssuersEquityTypeAxis
= nssi_ExercisePriceThreeMember
Expiration Date Jul. 26, 2018