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Fixed Assets (Details 1) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2018
Jun. 30, 2017
Lease cost:        
Operating lease cost $ 53,000 $ 60,000 $ 106,000 $ 115,000
Short-term lease cost 0 0 0 0
Total lease cost $ 53,000 60,000 $ 106,000 $ 115,000
Cash paid for amounts included in the measurement of lease liabilities:        
Operating cash flows from operating leases   $ 86,000    
Weighted average remaining lease term (in years)   1 year 8 months 8 days    
Weighted average discount rate   5.00%