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Fixed Assets (Details) - USD ($)
Sep. 30, 2018
Dec. 31, 2017
Property, Plant and Equipment [Line Items]    
Machinery and equipment $ 832,000 $ 801,000
Office furniture and equipment 177,000 167,000
Leasehold improvements 150,000 147,000
Right of use asset-operating leases 518,000 518,000
Accumulated depreciation and amortization (1,315,000) (1,135,000)
Property, Plant and Equipment, Gross $ 362,000 $ 498,000