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PATENT RELATED INCOME (Detail Textuals) - USD ($)
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Finite-Lived Intangible Assets [Line Items]      
Income from patent arrangement $ 800,000    
Gain on sale of patent assets   $ 43,000 $ 2,127,000
Home networking technology      
Finite-Lived Intangible Assets [Line Items]      
Sale of patent   50,000  
Transaction cost   $ 7,000  
DSL diagnostic technology      
Finite-Lived Intangible Assets [Line Items]      
Sale of patent     2,600,000
Transaction cost     $ 500,000