Property, Plant and Equipment Property, Plant and Equipment - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Property, Plant and Equipment [Line Items]
Depreciation	$ 265	$ 358
Cost of Sales [Member]
Property, Plant and Equipment [Line Items]
Depreciation	$ 168	$ 212