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Intangible Assets (Details 1) - USD ($)
Jun. 30, 2017
Dec. 31, 2016
Amortization expense for intangible assets [Abstract]    
2017 $ 173,000  
2018 346,000  
2019 346,000  
2020 346,000  
2021 346,000  
over 5 years 2,593,000  
Total $ 4,150,000 $ 8,384,000