Annual report pursuant to Section 13 and 15(d)

Property and Equipment, Net (Details)

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Property and Equipment, Net (Details) - USD ($)
Dec. 31, 2017
Dec. 31, 2016
Property, Plant and Equipment [Line Items]    
Total cost $ 4,476,000 $ 4,770,000
Less accumulated depreciation (1,816,000) (1,523,000)
Net 2,660,000 3,247,000
Property, Plant and Equipment [Member] | Machinery and equipment [Member]    
Property, Plant and Equipment [Line Items]    
Total cost 4,225,000 4,377,000
Property, Plant and Equipment [Member] | Computer equipment and software [Member]    
Property, Plant and Equipment [Line Items]    
Total cost 202,000 176,000
Property, Plant and Equipment [Member] | Office furniture and fixtures [Member]    
Property, Plant and Equipment [Line Items]    
Total cost $ 49,000 $ 217,000