Property, Plant and Equipment (Details) - Property, plant and equipment - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Property, Plant and Equipment [Line Items]
Property, plant and equipment, Gross	$ 2,982	$ 2,864
Less accumulated depreciation	632	572
Net property, plant and equipment	2,350	2,292
Machinery Fixture And Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, Gross	2,947	2,839
Net property, plant and equipment	2,400	2,300
Leaseholds and Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, Gross	$ 35	$ 25