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Patents and Other Intangible Assets (Details 2) - USD ($)
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Finite-Lived Intangible Assets [Line Items]      
Finite-Lived Intangible Assets, Net $ 1,787,000 $ 2,845,000 $ 2,329,000
Patents [Member]      
Finite-Lived Intangible Assets [Line Items]      
2017 179,000    
2018 179,000    
2019 157,000    
2020 91,000    
2021 30,000    
Thereafter 28,000    
Finite-Lived Intangible Assets, Net $ 664,000