Property, Plant and Equipment (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Property, Plant and Equipment [Line Items]
Property plant and equipment	$ 85,406	$ 76,722
Less accumulated depreciation and amortization	(8,698)	(8,367)
Property, plant and equipment, net	76,708	68,355	[1]
Land
Property, Plant and Equipment [Line Items]
Property plant and equipment	257	257
Building and improvements
Property, Plant and Equipment [Line Items]
Property plant and equipment	17,470	8,613
Machinery and equipment
Property, Plant and Equipment [Line Items]
Property plant and equipment	9,524	9,142
Computer hardware and software
Property, Plant and Equipment [Line Items]
Property plant and equipment	3,936	3,244
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Property plant and equipment	543	449
Construction in progress
Property, Plant and Equipment [Line Items]
Property plant and equipment	$ 53,676	$ 55,017

[1] Derived from the audited December 31, 2017 financial statements