Annual report pursuant to Section 13 and 15(d)

STOCKHOLDER'S EQUITY (Details 2)

v2.4.1.9
STOCKHOLDER'S EQUITY (Details 2) (USD $)
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Weighted average exercise price of options granted $ 1.65invest_InvestmentOptionsExercisePrice  
Options outstanding 2,950,000us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions  
Weighted Average Remaining Life in Years 3 years 8 months 16 days  
Options exercisable 2,637,503us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions  
Weighted average exercise price $ 1.24nssi_WeightedAverageExercisePrice  
Minimum [Member]    
Weighted average exercise price of options granted $ 0.83invest_InvestmentOptionsExercisePrice
/ us-gaap_RangeAxis
= us-gaap_MinimumMember 		$ 1.19invest_InvestmentOptionsExercisePrice
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
Maximum [Member]    
Weighted average exercise price of options granted $ 1.88invest_InvestmentOptionsExercisePrice
/ us-gaap_RangeAxis
= us-gaap_MaximumMember 		$ 1.88invest_InvestmentOptionsExercisePrice
/ us-gaap_RangeAxis
= us-gaap_MaximumMember