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Fixed Assets (Details 1) - USD ($)
3 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Lease cost:    
Operating lease cost $ 53,000 $ 55,000
Short-term lease cost 0 0
Total lease cost $ 53,000 55,000
Cash paid for amounts included in the measurement of lease liabilities:    
Operating cash flows from operating leases   $ 43,000
For operating lease:    
Weighted average remaining lease term (in years)   1 year 11 months 8 days
Weighted average discount rate   5.00%