Property, Plant and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Property and Equipment [Line Items]
Plant and Equipment, Gross	$ 47,032	$ 36,853
Less accumulated depreciation and amortization	(19,688)	(16,389)
Net plant and equipment	27,344	20,464
Land	7,164	5,201
Net property, plant and equipment	34,508	25,665
Manufacturing Equipment [Member]
Property and Equipment [Line Items]
Plant and Equipment, Gross	16,555	13,198
Buildings [Member]
Property and Equipment [Line Items]
Plant and Equipment, Gross	10,715	9,930
Office and Computer Equipment [Member]
Property and Equipment [Line Items]
Plant and Equipment, Gross	4,576	3,647
Research and Development Equipment [Member]
Property and Equipment [Line Items]
Plant and Equipment, Gross	4,532	3,404
Building Improvements [Member]
Property and Equipment [Line Items]
Plant and Equipment, Gross	4,353	790
Leasehold Improvements [Member]
Property and Equipment [Line Items]
Plant and Equipment, Gross	2,585	2,526
Construction-in-Process [Member]
Property and Equipment [Line Items]
Plant and Equipment, Gross	2,051	2,212
Furniture and Fixtures [Member]
Property and Equipment [Line Items]
Plant and Equipment, Gross	$ 1,665	$ 1,146