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Financing (Details 8) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Debt Conversion [Line Items]    
Gain (loss) from change in fair value of derivative liability - warrants $ (1)us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet $ 373us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet
Series D Convertible Preferred Stock [Member]    
Debt Conversion [Line Items]    
Gain (loss) from change in fair value of derivative liability - warrants 0us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet
/ us-gaap_StatementClassOfStockAxis
= neom_SeriesDConvertiblePreferredStockMember		 66us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet
/ us-gaap_StatementClassOfStockAxis
= neom_SeriesDConvertiblePreferredStockMember
Warrants With Debenture Attached Series 2007 [Member]    
Debt Conversion [Line Items]    
Gain (loss) from change in fair value of derivative liability - warrants 0us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet
/ neom_CompoundedWarrantsAxis
= neom_WarrantsWithDebentureAttachedSeries2007Member		 0us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet
/ neom_CompoundedWarrantsAxis
= neom_WarrantsWithDebentureAttachedSeries2007Member
Warrants With Debenture Attached Series 2008 [Member]    
Debt Conversion [Line Items]    
Gain (loss) from change in fair value of derivative liability - warrants (1)us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet
/ neom_CompoundedWarrantsAxis
= neom_WarrantsWithDebentureAttachedSeries2008Member		 177us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet
/ neom_CompoundedWarrantsAxis
= neom_WarrantsWithDebentureAttachedSeries2008Member
Warrants With Debenture Attached Series 2010 [Member]    
Debt Conversion [Line Items]    
Gain (loss) from change in fair value of derivative liability - warrants 0us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet
/ neom_CompoundedWarrantsAxis
= neom_WarrantsWithDebentureAttachedSeries2010Member		 61us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet
/ neom_CompoundedWarrantsAxis
= neom_WarrantsWithDebentureAttachedSeries2010Member
Warrants With Debenture Attached Series 2011 [Member]    
Debt Conversion [Line Items]    
Gain (loss) from change in fair value of derivative liability - warrants 0us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet
/ neom_CompoundedWarrantsAxis
= neom_WarrantsWithDebentureAttachedSeries2011Member		 43us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet
/ neom_CompoundedWarrantsAxis
= neom_WarrantsWithDebentureAttachedSeries2011Member
Warrants With Debenture Attached Series 2012 [Member]    
Debt Conversion [Line Items]    
Gain (loss) from change in fair value of derivative liability - warrants $ 0us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet
/ neom_CompoundedWarrantsAxis
= neom_WarrantsWithDebentureAttachedSeries2012Member		 $ 26us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet
/ neom_CompoundedWarrantsAxis
= neom_WarrantsWithDebentureAttachedSeries2012Member