Property, Plant and Equipment, net (Details) - Property, plant and equipment - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Property, Plant and Equipment [Line Items]
Property, plant and equipment, Gross	$ 2,703	$ 2,984
Less accumulated depreciation	523	698
Net property, plant and equipment	2,180	2,286
Machinery Fixture And Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, Gross	2,691	2,972
Leaseholds and Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, Gross	$ 12	$ 12

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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